How to choose a screwdriver for work and home. How to choose a cordless screwdriver. Which screwdriver to choose

The household always needs tools that will help equip the house, assemble something, fix it. Now we will learn how to choose a screwdriver - bright representative tools needed by a real owner.

What is a screwdriver for?

First, let's figure out what kind of work a screwdriver is used for, how great the benefit of it is and whether it will lie idle for years. With it, you can:

• screw and unscrew various fasteners, such as self-tapping screws or bolts.
• drilling wood, metal and other materials;
• cut a thread;
• tighten anchor screws and dowels.

If you need to hang a shelf, a picture, screw a cornice or a handle to a door, then a screwdriver will help you do it quickly and reliably. It is useful when installing TV and audio equipment, assembling furniture, installing drywall, and when carrying out many other repairs and ongoing household work. Often a screwdriver is needed in the country, where you constantly have to do something with your own hands. This is the tool that, along with a hammer and a screwdriver, should be in any home. Of course, it is not necessary to buy a very expensive and powerful model. For ordinary domestic work a reliable screwdriver with medium parameters is quite suitable. On what grounds to choose it?

Tool Options

To know how to choose a screwdriver for the home, you need to have an idea about its main parameters. The main characteristics of a screwdriver are:

• the number of revolutions at idle or simply the number of revolutions;
• torque;
• power supply type.

By the number of revolutions, everything is clear. The more revolutions the device makes, the faster it drills or tightens the screw. If the screwdriver only performs the function of twisting, then 500 rpm or a little less is enough. If it also works like a drill, which is quite common, then the number of revolutions should be at least 1200 per minute. Such electric drill will suit you well for a wide range of woodworking.

Torque indicates how much force the tool can overcome in working condition. The larger this value is, the more durable materials he can drill. Since we are now talking about a household appliance, and not a professional one used by specialists at construction sites, a moment of 15-30 N * m will be enough. For more powerful tools, the torque can reach 80-130 N * m.

The power supply of the screwdriver can be from the battery or from the mains. Since the presence of a battery makes it possible to work anywhere, allows you to freely transfer the device and not depend on the location of the nearest outlet, more and more models are produced with this type of power supply.

The more powerful the battery, the more the tool will be able to work without recharging. You can also buy a model with spare batteries so that you can change them if necessary. The most modern and environmentally friendly are nickel-metal hydride batteries. They are compact and can withstand a large number of recharges (up to 500), but their cost is high. It must be remembered that they are capricious to negative temperatures and must be stored charged.

Nickel-cadmium batteries are cheaper, but the presence of cadmium makes them very toxic, so they are being phased out in Europe. There are also lithium-ion ones, but they are much rarer, and their cost is quite high, although they are two hundred powerful and are great for long work.

You should pay attention to such an indicator of the battery as the product of current and time (capacity). The larger it is, the more suitable the tool for longer work, since the battery can hold a charge longer.

Accessories and appearance

It is impossible to fully answer the question of how to choose the right screwdriver without considering the components and appearance products. Often, screwdrivers are sold without additional parts and fixtures, but there are kits that, in addition to the main tool, include a set of nozzles (bits and drills). This is very convenient, because the more complete the set, the more species screws you can tighten / unscrew. In any case, bits and drills can be purchased separately.

Always pay attention to the design of the handle. When performing work, you should be comfortable holding a screwdriver in your hand. The most popular now devices with a handle, in which the center of gravity is balanced, it is much more convenient to work with them. Such a handle is made in the center, unlike the pistol type. The ergonomic factor is especially important for those who work for a long time, assemble a complex large structure.

Additional features

Universal drills are screwdrivers, which can be drilled and screwed alternately. They are equipped with speed switches. If you are interested in how to choose a drill driver, then you need to pay attention to the speed of the device. Usually, 500 rpm is enough for screwing, and 1300 rpm for drilling. Buying a model that can do more than 1300 rpm is worth it only if you want to drill very hard materials. Powerful devices can twist large screws in length and diameter. If you want your electric drill to be suitable for concrete work, then it is best to choose an impact model with a torque of about 80 Nm or more.

All screwdrivers are equipped with a speed limiter. This is the ring that sits just behind the chuck. By adjusting the position of the ring, the maximum force is set, after which the cartridge stops rotating. This is necessary so that the slot of the fastener does not break off, so that the screw does not go very deep and so that the bits wear out less.

An important part of the screwdriver is the chuck. Attaches attachments for various works. The chuck can be quick-clamping and clamping with a key. The first option is much better, so pay attention to it.

A very handy feature is the reverse motion (reverse). With it, you can unscrew the screw or pull out the stuck drill.

Some instruments are backlit, making it easy to navigate in the dark. There are models with a low battery indicator, which is also quite convenient. There are other models with automatic feeding screws and with a magnetic holder, but they are more suitable for professionals.

A screwdriver is a useful tool in professional construction, domestic use, repair, capable of performing many functions. If you are wondering how to choose a screwdriver for home, cordless or mains in 2017, taking into account the pros and cons of various models, you need to understand this issue in detail. Here you will find an overview of the parameters and capabilities of this device, as well as tips for choosing a reliable screwdriver that will last faithfully. long years. Make repairs only with a reliable and proven tool that will suit you in terms of valuable quality.

Design

When choosing an inexpensive but good screwdriver, study its design features. The design should consist of the main elements:

• DC motor;
• reducer;
• batteries;
• speed control buttons;
• load limiter.

Types

The tool is of two types:

• domestic;
• professional.

Before buying a screwdriver for construction, think about how often you will use it. The home model has less power and is ideal for those who are going to use it only occasionally. According to customer reviews, a professional screwdriver is best suited for frequent use, even if you are not related to the construction industry. It is always much better, more powerful and more functional than household ones.

Choosing a screwdriver according to the parameters

In order to choose the right screwdriver according to the parameters, you should carefully study all the characteristics and decide which of them will definitely be needed in the work, and which ones you can save on. Main parameters:

• power;
• operating speeds;
• type of food;
• cartridge type;
• maximum torque;
• reverse;
• additional functions.

Power

Power is the voltage coming from the battery. This indicator is in the range of 1.2-36 V. According to the power characteristics, screwdrivers with a voltage of 6, 12, 18, 24, 36 V are considered common. The more powerful the device, the slower the battery discharge decreases. But such models have the most suggestible weight. You should still select a screwdriver, based on the conditions of its operation:

• 3-6 V - the simplest work;
• 10-15 V - drilling of non-solid materials (for example, drywall);
• from 18 V - drilling materials with high hardness and strength.

Networked devices are more powerful because they work directly from the mains, and not from a battery. The most common indicator among household models is 450-650 watts. If long and complex work is planned, then you should choose a device with higher rates.

Number of operating speeds

The device can have from 1 to 3 speeds. It is recommended to select a device with at least two modes, since they are intended for a specific type of work. The most low speed serves for screwing fasteners, the other two - for drilling. It is not worth using speed modes for other purposes, since an undesirable load on the gearbox is carried out.

Power type

By type of power tools are divided into two categories:

• rechargeable;
• networked.

Cordless screwdrivers occupy the first positions in popularity in the market, and are also considered the most practical. Choosing a cordless screwdriver for home, you get the opportunity to work, regardless of access to the power supply. Three types of batteries are used:

1. lithium-ion;
2. nickel-cadmium;
3. nickel-metal hydride.

Household screwdrivers are most often equipped with nickel-cadmium batteries, which are affordable, reliable and energy intensive. They also tend to have the highest possible number of charging/discharging processes at correct operation. The disadvantages include large size, significant weight and loss of capacity due to incomplete charging and discharging.

Nickel-metal hydride battery powered cordless screwdrivers are lighter, more energy efficient and more impact resistant. However, they charge much more slowly and are designed for fewer cycles. In conditions of low temperatures, it is impossible to use such devices.

Screwdriver with lithium-ion battery – modern solution. Such batteries are characterized by small parameters and lightness, a large number of cycles, low self-discharge and simple maintenance conditions. In addition, you can charge them as you like, this does not affect the capacity. However, they also cannot be used at low temperatures, and there is also a danger of overheating.

A significant parameter of a cordless tool is its capacity. It determines how long you can use the device without recharging. For domestic use, a capacity of 1.2-2.4 A / h is enough.

With a cordless screwdriver, everything is easier. The area of ​​its action is limited by the connection to the power supply. In this case, give the choice to models with the maximum long cord Or make sure you have extension cords.

Cartridge type

The chuck is the part of the structure that holds the drill or bit. Varieties:

1. Toothed (key). The drill is fixed using a special key. You will have to spend a little effort and time on this procedure, in return you will get the most reliable mount. It is recommended to buy a screwdriver with a key chuck if you have to work a lot with wood and other hard materials.
2. Quick release. The most practical type. To install the drill, just insert it into a special hole. The fastening strength is only slightly inferior to the gear mechanism.
3. Batt cartridge. This is a special mechanism that is intended for nozzles of various shapes (hexagonal, cross, flat, etc.). Changing the nozzle takes a few seconds.

An important characteristic of a screwdriver is the diameter of the chuck. It defines the parameters of the bit and drill with which the tool will be able to interact. The maximum allowable diameter varies between 6-16 mm, but the higher it is, the more options are available to you.

Max Torque

Torque is a very important indicator of work. It represents the highest load with which the device can operate at a certain speed. The higher this indicator, the larger fasteners the device can screw in. For work in everyday life, it is better to buy a screwdriver, with a maximum torque of 10-12 Nm, but no less.

Reverse

Reverse is important and required function, which is useful in screwdrivers for the home, and in professional models. There are situations when the fasteners are screwed in not entirely successfully. In order not to spend a lot of time and effort on removing them manually with a screwdriver, use the reverse function. It is related to the cartridge of the device and implies its ability to rotate in the opposite direction. Nowadays, any inexpensive but good screwdriver is equipped with such a function.

The weight

The severity of the tools can be varied - from 400 g to several kilograms. But for both everyday life and professional use, it is advisable to buy a screwdriver no heavier than 1-2.5 kg. A larger number of kilograms quickly causes fatigue in the hands, and in smaller devices, the power and other functionality leave much to be desired.

Additional functions

High-quality models are equipped with additional features:

1. Locking the power button - when it is activated, the risk of accidental start-up disappears, which is fraught with various negative consequences.
2. Protection of the battery from overheating, full discharge and overload - with all of these phenomena, the battery can simply fail. However, in many models, its recovery is impossible.
3. LED flashlight - working with backlight is much more convenient, especially in hard-to-reach places.

Which company to choose a screwdriver

The screwdriver of which company to choose depends on the available budget and the conditions in which the tool is planned to be used, since each segment has its own leading manufacturers. The most popular devices in 2016 were the devices of the following companies:

• Bosch
• Makita
• Interskol
• Hitachi
• Metabo

Conclusion

Now you probably will not have any difficulties in terms of which screwdriver to choose for your home in 2017. To buy the best device, battery or mains, carefully read all its characteristics and make sure that its quality corresponds to the cost, and the functionality suits you perfectly.

For some jobs, you have to tighten a lot of screws. You can, of course, do this manually with a screwdriver, but this requires considerable effort and takes a lot of time. To speed up the process, you need to choose a screwdriver. There are very inexpensive models - household ones - which, nevertheless, greatly facilitate the installation and dismantling of screws. And some can work in drill mode.

Household or professional

As you know, professional screwdrivers are more expensive, but this is no coincidence. They are made with a large margin of safety, for which better and more expensive materials are used. In addition, they have more power, which makes it possible to drive longer self-tapping screws and / or work with harder materials.

To decide whether you need a household or professional screwdriver, estimate the amount of work that will need to be done. If you are starting a construction or major renovation, you probably need a professional or semi-professional model. If the tool will be needed periodically - unscrew / twist something from time to time, household is more than enough. With such work, the resource of a pro tool simply will not be in demand. So choosing a screwdriver according to this criterion is not very difficult.

Battery or mains

Having decided on the class, you will need to decide whether you need a cordless or cordless screwdriver. The disadvantages and advantages of both are obvious: the battery has higher mobility and the cord does not interfere with work, but it weighs more. The network does not depend on the presence of a battery charge, but not all construction sites have power supply. AT general choice difficult. The decisive moment may be cordless screwdriver with a good battery is decently more expensive than a similar model powered by the network. The difference is formed due to the presence of a battery - good options are not cheap.

If you decide to choose a power screwdriver, pay attention to the length of the cable. The longer it is, the more convenient it will be to work - you don’t have to carry a carrier.

To choose the right screwdriver on batteries, you need to pay attention to the type of battery. This determines the duration of work on a single charge, as well as the order of storage.

• Lithium-ion (Li-lon). Holds a charge for a long time, charges quickly, has a large number of recharges, almost does not discharge during storage. All in all, a good option but expensive. Because, probably, it is more common on professional models, where the duration of work on a single charge is important. The disadvantages include the fear of cold, which is important in our country.

  

• Nickel Metal Hydride (Ni-MH). This type batteries environmentally friendly, have small size and mass, average price. Disadvantages - they also do not like low temperatures, they have a short service life - about 3 years. But it is easier to work with such a tool - the hand is not so tired. When storing the battery, the battery is fully charged; discharged batteries cannot be stored. During storage, they are discharged, but moderately.

  

• Nickel-cadmium (Ni-CD). Main advantages - low price and the service life is 5 years (the number of charges is about 3000), it is not afraid of frost, that is, you can work outside in winter. Disadvantages - takes a long time to charge (it takes twice as long to charge batteries of other types), has a "charge memory". Charge memory is a nasty thing. If you charge a battery that is not fully discharged, then the total capacity of the battery will decrease. It will become less just by the value from which the charge began. Therefore, it is necessary to work with such a tool until the battery is completely discharged, which is far from always convenient: it cannot always “tighten” the screw, you have to help with your hands or tighten it with a “fresh” battery. Store fully discharged for storage, otherwise the capacity will decrease again.

  

  The cheapest type of batteries are nickel-cadmium, but they have a "charge memory"

So, if you choose a cordless screwdriver for occasional work, a nickel-cadmium battery will do just fine. If used carefully, it lasts a long time. If you start large-scale work, it is better to use other batteries - there will be less downtime, the work will move faster.

Cartridge type

There are two types of screwdriver chuck: key and quick-clamping. Quick-release (usually has three petals) allows you to change nozzles in a matter of seconds - the cartridge is turned a little by hand, the nozzle changes, after which it is again turned a little in reverse direction. In addition, there is another positive point: it is fashionable to install a nozzle of any thickness in such a holder. The main thing is that the shank fit into the holder.

The same operation with a key cartridge requires a special key. It is inserted into a special socket, rotated until the nozzle is released. After replacement, the key is turned in the opposite direction. The disadvantage is obvious: you need to have this key on hand.

By structure, keyless chucks can have one or two clutches. If there are two clutches, one of them fixes the cartridge, the second - the shaft. If there is only one clutch, then there is a shaft lock button on the body.

It is not difficult to choose a screwdriver according to this parameter - usually everyone converges on quick-clamping ones. They allow you to fix nozzles of large sizes, though they are, all other things being equal, a little more expensive.

Technical specifications

Once you have decided on the type of screwdriver and power, you need to focus on the technical specifications. They determine which screws and what material you can screw into.

Rotation speed and torque

The force with which a screwdriver can turn a screw is determined by the torque. It can be quite small for household models - 10-15 Nm, and can reach 130-140 Nm for professional ones. Because pro screwdrivers can easily and quickly tighten large self-tapping screws and work with hard materials.

But a large torque is not always necessary and not with all materials, therefore, screwdrivers provide the ability to adjust the applied force. There is a limiter for this. It is made in the form of a movable ring, which is located behind the chuck.

There is a mark on the ring, putting it opposite certain number, you specify the maximum force that the tool can develop. Upon reaching this value, the cartridge will scroll to idle - the screw will no longer be twisted. The achievement of this value can be clearly tracked - the ratchet is turned on.

Many models of screwdrivers can work in two modes: the actual tightening of fasteners and drilling. Such models are called a screwdriver-drill, but they are now the majority. To switch to the drill mode, the switch is set to its extreme position (having previously replaced the nozzle). This turns on the maximum speed, which allows you to drill even fairly hard materials.

Screwdriver power

Both the torque and the speed of rotation are a consequence of the power of the electric motor. Therefore, you need to look at this parameter as well. But here it is necessary to monitor three quantities at once: so that the power of the screwdriver corresponds to the speed parameters. powerful models with good parameters can be found from many manufacturers, but such as Metabo (Metabo), Bosch (Bosch) and Makita (Makita) and other well-known prices for them are very high. There are other brands with similar characteristics, but more reasonable prices. For example, RYOBI (Ryobi). The brand is still little known, but according to reviews, it is no worse than the above famous brands. In order to be able to compare the main characteristics and price of models of approximately the same power, but different brands, we will summarize them in a table.

It is worth saying a few more words about the number of speeds of work. Do not confuse with the number of rotation speeds. These are two modes of operation that are used when working with different sizes of screws or drills. When working with small screws / drills, you can select a higher speed, when screwing in large self-tapping screws or drilling large holes, a lower one.

Battery Options

To choose the right screwdriver with batteries, in addition to the type of batteries, you must select their operating parameters:

To choose a screwdriver for home or professional use and do not regret, it is necessary to view these parameters necessarily. If you have selected several models, compare them according to these characteristics, because it depends on them how long the interval between screwdriver battery charges will be.

Additional functions

As usual, these features are optional, but they greatly improve usability. Some prices, if they raise, are not at all significant, and some are quite noticeable. To choose the most inexpensive screwdriver, you can get by with a minimum - reverse and the presence of illumination of the place of work. The rest, of course, are useful, but are more suitable for professionals.

Reverse or reverse

The presence of this option allows you to unscrew a screw or a drill stuck in the material. The direction of rotation is changed by changing the polarity of the power supply, which is carried out through a special button. It is usually installed close to the trigger lever.

Most often, the travel direction switch button has three positions: on average, the tool is blocked. This increases safety: if you accidentally hit the lever, the screwdriver will simply stop and not immediately start to rotate in the opposite direction.

Illumination of the working area

A very convenient option that does not really affect the price of a screwdriver is the illumination of the place of work. With good lighting, it is much easier to control the instrument.

Illumination of the work area - useful additional function screwdriver

An LED is built into the handle or body of the tool near the cartridge, which lights up when the start button is pressed. If you want to choose a screwdriver that is convenient to work with, make sure that there is a backlight for the place of work.

If you decide to opt for a cordless screwdriver, it would be nice to have a battery indicator. These are LEDs of different colors - green, yellow, red, which are located on the case. If it is green, the charge is full; if it is red, it is almost empty.

The location of the indicator depends on the company, but is usually located on the thickening of the handle, in the same place as the backlight LED, or in the upper part of the case.

Automatic feeding of self-tapping screws

Such screwdrivers are also called store-bought. This option is useful for professionals, especially those who work with drywall, where fasteners need to be placed in small increments. Self-tapping screws are attached to special tape, refuel in guides, are automatically fed to the holder.

This option can be implemented in two ways: there are store screwdrivers (in the photo on the left) and there are nozzles for a conventional screwdriver. For home use the second option is preferable, since the tool can work like a drill or reverse. A shop screwdriver is highly specialized equipment for professional use.

Every person who does housework needs a tool. During construction, repair, it is impossible to work without a screwdriver that twists the fasteners. The main use occurs in the assembly of furniture, repair, dismantling and other works. A universal screwdriver will help you perform work quickly and efficiently, without applying special efforts. To select a tool, you need to refer to the instructions, study the parameters. For home use, you do not need a professional tool, the choice of which costs decent money, it is enough to choose an average model for the optimal price-quality ratio.

The main parameters of the screwdriver

The variety of models offered on the market differs in various parameters. To select the correct equipment for the functionality, you must refer to the technical specifications. Important parameters:

• Rotation frequency.
• Battery type and capacity.
• The force (torque) of the screwdriver.

The choice of a screwdriver for home use is determined by the budget. For screwing self-tapping screws into soft wood and drywall products, a torque of up to 15 Nm and a low speed are suitable. You need to know that professional equipment has a torque of up to 120 Nm, which allows you to drill metal products and makes the device universal.

The speed of rotation, as well as the force of the wrench, is selected depending on the tasks. To drive self-tapping screws, a speed of up to 500 rpm is suitable; to drill through hard materials, you need a speed of at least 1200 rpm. When choosing, you must be familiar with technical specifications gearbox, its structure and material. In budget models, a planetary type of gearboxes is used from plastic parts. This type may not last long, it is worth checking the availability of spare parts before buying.

Professional or household

Before choosing, it is necessary to accurately evaluate the actions that will be performed by the tool. professional look it makes no sense to purchase screwdrivers if you need to use the tool for light tasks, such as assembling a small wooden structure or dismantling elements of home fittings. The selected more expensive tool is used for mass construction work, furniture assembly, installation of large structures. Professional screwdrivers are characterized by increased battery capacity, higher spindle speed, torque.

Choosing a screwdriver for home use involves buying a more budget device. A household screwdriver is useful in farms remote from power points, it has better mobility and weight. It is important to remember that it is not comfortable to perform large-scale work with a budget household model, since the models are equipped with a smaller battery and rotational force. Batteries in most budget models have a memory effect, take too long to charge, which causes discomfort and slows down the process of doing work.

Main types and their characteristics

Fasteners are divided into subcategories. Types of screwdrivers are divided according to the price bar, have similar parameters, but are responsible for different functions. It is common to use a screwdriver-drill, which has a universal chuck, has the function of punching in expensive models. There are also stand-alone screwdrivers, electric screwdrivers, which have become widespread in industries, with large plumbing work.

Electric screwdrivers have a number of advantages, they are used when working with small screws and other parts. With improved performance, stand-alone screwdrivers can easily perform tasks where a conventional electric drill is not possible. Reduced weight, convenient and versatile design, rotation speed allow you to perform almost any task when connecting screws and other fasteners. The universal swivel-type design, which is installed on many models, allows you to connect in hard-to-reach places. Additional parameters can describe the reduced battery voltage, which allows for a long time to perform twisting.

Screwdrivers are equipped with a quarter-inch socket as the most common tool option on the market.

Nutrunners are used for specific operations associated with the installation of large diameter threaded products. Characteristics are similar to an electric drill, but have several features. The cartridge is usually equipped with a standard head for quick change of nozzles, there is an adjustable speed and reverse. Electric nutrunners are designed for more powerful forces, but the duration drops, due to increased loads. The tools have reduced speed but more torque for large connections. For example, professional models achieve a force of up to 200 Nm, which corresponds to network nutrunners.

The most common type of power tool is a drill/driver. The device is used as a universal type, used in various fields construction, domestic work. The characteristics of screwdrivers are divided into basic parameters, such as rotation speed, battery type and capacity, the presence of an impact function, and the type of cartridge.

How to choose a cordless drill for the home criteria for the right choice

The most popular tool among craftsmen every year is becoming a cordless drill/driver. How to choose a screwdriver can tell you some parameters that you need to consider before buying. The choice of models offered on the market is very large, from Chinese fakes to professional tools.

The right screwdriver directly depends on the result, if hard materials are being drilled, it is better to turn to a professional tool How to choose a professional screwdriver without experience and skills:

• Pay attention to the voltage, the higher the indicator, the greater the engine torque and price.
• Battery capacity. A good option is a lithium battery, small capacity, no memory mode allow long enough to work under load.
• Rotational speed and torque are the main indicators when choosing a professional screwdriver.

What power to choose a motor and with what torque

The main criterion when choosing a tool is the power of its electric drive, torque. For professional models, the spindle speed plays important role, because they have to drill and twist products into solid materials. The spindle speed must correspond to 1200 rpm, and the torque ends at a threshold of 130 Nm.

Household products are equipped with spindles with a power of up to 20 Nm, a rotation speed of not more than 500 rpm. The maximum length and diameter of the screw, as well as the hardness of the material, depend on the torque. You can choose the right screwdriver, guided by the main tasks, materials. A feature of electric screwdrivers is the ability to adjust the maximum torque. The mechanism screws the element up to the set power threshold, then a characteristic crack is heard.

The rotation speed of the cartridge and its varieties

Cartridges are divided into varieties - key and quick-clamping. For a key, a multi-faceted key is needed, as on electric drills, a quick expansion key allows you to replace a drill or nozzle without difficulty. Replacement depends on the type of tool, there are two clutches in the key mechanism, one is responsible for blocking the rotation of the shaft, the second for clamping the cartridge.

Number of batteries and battery capacity

An important parameter when choosing a tool is the presence quality element nutrition. The battery is responsible for the duration of rotation. The choice of a screwdriver directly depends on the type and power of the battery. Battery capacity is indicated in ampere-hours, voltage in volts. There are several options with which type of battery to choose a screwdriver. Each of the varieties has excellent characteristics, differs in price and power.

Comfortable work is achieved by the presence of a spare battery. Choosing a screwdriver even with a powerful battery, it can be quickly discharged. The charging process can take a decent amount of time in which it is possible to perform work. A spare battery will allow you to change the battery, continue the action.

Reverse

The presence of a reverse is a very convenient feature. With it, it is possible to unscrew crooked self-tapping screws, a stuck drill, or simply unscrew the nuts. The switch is located at the top of the handle for convenient use, the middle position blocks the device to prevent accidental pressing when carrying or changing the nozzle.

Equipment and design

The choice of the design of the screwdriver must meet the conditions of ergonomics. The convenient arrangement of switches in a hand, the weight balanced in the handle allows to do work with necessary speed. In some models, the required number of nozzles for work is supplied. Right choice saves time and money on the purchase of the necessary parts.

Many of their readers still remember those times when, to work with fasteners or threaded connections I had to use only screwdrivers and ordinary wrenches. It is clear that it is not even necessary to talk about the high productivity of such work. Very often, in order to "drive" the screw into place, it was impossible to do without pre-drilling the hole, since the efforts of the hand in this case, not enough overcoming the resistance of solid wood, not to mention the situation when it was required to "pierce" even the thinnest a metal sheet. A few hours of such work - and the inevitable calluses on the hands, and the work progressed barely.

The situation has changed radically with the advent of screwdrivers. At first, they were referred to as a kind of instrumental "exotic", causing genuine envy. But very soon these useful tools appeared in free sale, "migrated" to the category of public, and today they are included in the mandatory "arsenal" of the vast majority of owners of houses or apartments. Those who are just now thinking about acquiring such an invaluable assistant should first understand the question of how to choose a screwdriver, that is, what to pay special attention to when evaluating the models presented in a wide range.

The main types of screwdrivers

Under the general name "screwdriver", consumers often mean several types of such a tool at once, which, despite the general similarity of functions, still have differences. So, there are three main types:

• Electric screwdrivers.
• Electric wrenches.
• The most versatile drill drivers. Some models can also be equipped with a shock function.

The most popular tools are those that work autonomously, from rechargeable batteries. However, it is quite possible to purchase a screwdriver that runs on a conventional 220 V / 50 Hz network. Tools with a cord for connecting to an outlet are commonly called “network”.

It is necessary to get to know the main types better - it will be easier to make a choice, realistically representing the intended nature of the work, their intensity and the load on the tool.

Electric screwdrivers.

Although in terms of their main performance indicators and overall functionality, cordless screwdrivers are to some extent inferior to standard ones drill drivers, they have their own specific advantages, which make these instruments widely popular both among professional craftsmen as well as among amateurs. These invaluable "advantages" include a small mass, compact layout of the device, high ergonomics. This allows you to use cordless screwdrivers in conditions where the use of a larger tool is either more inconvenient or even simply impossible.

Such a tool becomes indispensable on production lines for the assembly of small household equipment, computer and office equipment, it is widely used by craftsmen in the production process or final assembly pieces of furniture. Due to their compactness, ergonomics and low weight, these screwdrivers do not cause rapid hand fatigue, and therefore are very convenient for working at heights, including, for example, when installing suspended ceilings.

Cordless screwdrivers are different in their layout. Many models have a cylindrical body, which, however, is equipped with a swivel that allows you to fold if necessary, to concentrate the pressing force of the hand.

Other screwdrivers have the usual "pistol" shape, but always very compact, comfortable in the palm of your hand.

Cordless screwdriver in "pistol" design

In addition, very easy-to-use models are available, in which the swivel is provided for the working head with a rotating chuck. This opens up the possibility of tightening fasteners or dismantling in the most inconvenient places where it is not possible to start a conventional tool.

The compactness of such power tools is achieved through the use of small batteries, with a voltage usually in the range of 3 to 9 V. Screwdrivers do not have high rotation speeds - usually from 150 to 250 rpm. For their direct purpose, this is quite enough, as well as a tightening torque of about 10 N × m. For the vast majority of fasteners, especially in domestic conditions, such indicators are more than enough. However, there are more advanced models equipped with a two-speed switch, and allowing you to perform drilling work with plastic and wood - their rotational speed can reach up to 600 rpm.

Almost all cordless screwdrivers are equipped with a ¼" hex bit adapter. Usually, bits for various types of fasteners, as well as small-diameter drills with the same hex shank, are included with the screwdriver itself.

Unlike larger tools, electric screwdrivers are often equipped with a non-removable battery located in the product body. For charging, a special power adapter is used, which is connected to a power outlet.

What is the result? If the owner has a good drill in his tool kit, and he only needs to mechanize the process of working with fasteners, then a cordless screwdriver can be a very useful assistant. In the convenience of such operation, it surpasses a screwdriver, but is significantly inferior to it in functionality.

Electric wrenches

Another the type of tool that very similar to a screwdriver, and even in certain circumstances it can be used as it, but still has features that are directly related to its intended purpose.

If the master, according to the specifics of his work, very often has to resort to the installation or dismantling of threaded connections of medium or large diameter, then limit himself to using wrenches This means a drastic reduction in productivity. The classic example is put on stream assembly production or, which is closer to private practice, car repair or tire shops. In addition, in particular, when repairing machines, very often one has to deal with old, “sour” nodes, which can be unscrewed manually, even after processing special composition, appears to be very complex.

The way out is to use an impact wrench. Its design is such that, in addition to the usual rotational movement, impulse actions with a certain frequency are also transmitted to the working part of the spindle by a special mechanism. In a word, these are a kind of “micro-shocks”, capable of moving and unscrewing even very rusted nuts or bolts, without violating the integrity of the faces of their head.

Most nutrunners have the usual "pistol" design, but can be additionally equipped with a removable side handle to concentrate the clamping force when breaking the connection. Nevertheless, there are also "straight" devices, with a working head located perpendicularly - for performing operations in hard-to-reach places.

Of course, for such operations, special drive power is required - usually it ranges from 350 W for the smallest tools and even up to 1300 W for professional-grade devices. The rotation speed does not play a decisive role here, and it is usually small. But due to this, a high torque is achieved, which even for “weak” impact wrenches is about 200 ÷ 300 N × m (compare, for example, with the already considered cordless screwdriver!), And in professional-class models, with an electric drive power of over 1000 W, this figure can even reach 1000 N × m.

In appearance, wrenches are very similar to screwdrivers, but they are distinguished by a feature - the absence of a maximum torque adjustment ring (“ratchet”). The working end of the spindle is also different - most often there is an adapter-square under end heads. The dimensions of the square for models of different power can vary - ½ (most often for household models), ¾ or even 1 inch (for a professional powerful tool), which means that sets of heads should be purchased accordingly. Although, there are special adapters for this case.

Some manufacturers immediately provide for increased adapter versatility. So, in the center of the square spindle there may be a socket for inserting standard ¼ inch hexagons - bit shanks or drills.

More universal model- the adapter is designed for both sockets and hex bits

But even this does not add much versatility to the wrench. Its specific electromechanical characteristics are still “sharpened” under specific operations. High torque, and even with a pulsed mode, can be completely unnecessary and even harmful when working with materials that do not require excessive effort. And a low rotation speed may not be enough to perform drilling work.

In a word, impact wrench, if the specifics of the mater's work require it frequent use, will be a good addition to a screwdriver, but it is unlikely that it can completely replace it in the householder's arsenal.

By the way, many well-known manufacturers release tool kits,which includes and drill driver, and an impact wrench that run on a single set of batteries. Here it's a really versatile set. True, its cost is quite high, and such a purchase should be really justified.

Drills

This is the most common and most frequently purchased variety of such tools, which has increased versatility.

The vast majority of these screwdrivers are made according to the basic "pistol" scheme.

"Classic" drill-driver layout

1 - housing made of impact-resistant plastic (some professional-grade models have an all-metal housing). Inside there is an electric drive with controls, a well-thought-out air cooling system.

2 - pistol grip. In high-quality models, it has rubberized pads that prevent the tool from slipping in the worker's hand, making the tool as comfortable as possible.

3 - battery with a locking mechanism in the handle. In most models, it looks similar to what is shown in the figure. However, some modern screwdrivers are equipped with powerful batteries compact type, which are completely hidden inside the handle, making working with the tool even more comfortable.

4 - key (trigger) start. Moving the trigger at the same time smoothly adjusts the speed of rotation of the screwdriver's spindle. Usually the trigger is also covered with a pad of rubber or soft plastic.

5 - switch for the direction of rotation of the spindle (reverse). It is designed so that the switching process is as simple as possible - just the effort of a finger.

6 - gear switch, which allows you to change the operating modes of the tool - low speed with high tightening force, or, conversely, high-speed rotation, necessary for drilling work. This feature is not available on all models.

7 - cartridge for clamping a working tool - a bit holder or drills. The design of the cartridge may be different. Some models are not equipped with a chuck - they have a ¼ inch hex socket for standard bit shanks or special drills. The types of cartridges will be discussed below.

8 - clamping jaws of the cartridge.

9 - an indispensable element of any screwdriver - a mechanism for limiting the torque transmitted to the chuck. It is usually made according to the “ratchet” principle - when the set tightening torque is exceeded, the clutch slips with a characteristic sound. The number of torque setting positions can be different - from 5 ÷ 6 in inexpensive models to two dozen or more in professional tools. A drilling mode is necessarily provided - when the rotation is transmitted from the gearbox to the chuck without torque restrictions. This mode is indicated by the corresponding icon.

10 - modern screwdriver models in more often they are equipped with an LED workspace illumination system. Location LEDs may be different.

Thus, this type of screwdriver is the most versatile, which determines its widest popularity among professionals and home craftsmen.

Cheap drill drivers

Cheap drill drivers

What to look for when choosing screwdriver

Deciding to purchase a particular model drill driver, the future owner of the instrument must clearly understand, for what goals it is necessary what kind operations are planned to be performed by them and with which exploit intensity. It is these preliminary "bastings" that will become the base points when evaluating the characteristics of the devices offered for sale.

Type of batteries and their characteristics

It is advisable to start the consideration with the "energy" of the screwdriver. No matter how wonderful the tool itself is, its performance directly depends on batteries, the cost of which, by the way, is always more than half the price of the entire kit. Surely, many have had to deal with a situation where the screwdriver itself is still quite functional, but the way out of troy power supply creates a lot of problems. It is far from always possible to find a suitable replacement - many manufacturers do not sell batteries separately, apparently trying to encourage users to purchase a new set.

The main characteristics of batteries for screwdrivers are voltage and capacity.

• From voltage directly the power of the electric drive and, accordingly, the maximum torque, which determines functionality tool. So, on sale most often there are screwdrivers with batteries with a voltage of 9.6; 12; 14.4 or 18 V. This, however, is not the limit - for powerful professional tools there are batteries for 20 or even more volts (up to 36). 9 volts still looks not enough even for a household tool. The best solution for a screwdriver purchased for home use is likely to be the "golden mean" - with 14.4 V batteries.

By the way, you can find almost identical models of screwdrivers from one manufacturer, differing only in the supply voltage and, as a result, in power indicators. But even in this case, it should be understood that the batteries are not interchangeable - the electric drive is designed for a specific voltage, and exceeding it will lead to its failure.

• Battery capacity is measured in ampere-hours (Ah or Ah - you can meet both one and the other designation). Usually this indicator is indicated on the marking made on the battery case, next to the voltage.

Basically, battery capacity is a measure of how long a battery lasts. possible work tool on one fully charged battery, without recharging. Naturally, the larger this value, the less often it will be necessary to interrupt work to replace the power supply and put the elements on recharging.

Usually for household grade screwdrivers used occasionally, a capacity indicator of 1.2 ÷ 2 Ah is sufficient. For intensive use, this indicator will not be enough - you should look for kits with a battery capacity of 2 ÷ 3 Ah.

The performance of batteries is directly dependent on their types. This issue requires closer consideration.

• Nickel-cadmium batteries (Ni-Cd )

Due to the low price, such batteries remain the leaders in the mass use in middle-class power tools, despite the fact that they are being replaced by more advanced batteries.

Reliable Workhorses: Nickel Cadmium Batteries

Advantages nickel-cadmium batteries are as follows:

• The already mentioned low manufacturing cost.
• High resistance to negative operating and storage temperatures.
• The only ones that exist, they are not afraid of an absolutely complete discharge. Nickel Cadmium it is quite possible to store the battery in a discharged form - and after that it will fully recover after proper charging.

They have a lot of disadvantages:

• Inability to achieve high specific capacitance. Indicator in 2 Ah, in best case, will be limiting.
• Pretty small general term"life" - even high-quality Ni-Cd-batteries rarely withstand more than 1000 charge-discharge cycles.
• Such batteries are prone to self-discharge - with infrequent work, you may encounter the fact that a seemingly fully charged battery “sat down” from storage and does not cope with its task.
• The main "ailment" of such batteries is the "memory effect". It is unacceptable to charge the battery if it has not fully exhausted its resource. The fact is that when receiving a charge not from “0”, the remaining level of charge is still perceived by the device as the minimum value. Thus, the capacity of a fully charged battery spontaneously decreases by the value of the previously undeveloped potential. It is required in one way or another to completely discharge the battery (for example, by connecting a light bulb or a flashlight that is often included with a screwdriver), and only then insert it into the charger. This can be extremely inconvenient, especially in situations where it seems that the power of the tool is already beginning to be lacking, and “hands are reaching out themselves” to put the battery on charge.
• Improper disposal of used nickel-cadmium batteries can harm the environment.

Nonetheless , nickel-cadmium Batteries are considered true "workhorses", and are most often installed on household-class models. In such operating conditions, their qualities will be quite enough.

• Nickel metal hydride batteries (Ni-MH )

Nickel metal hydride batteries are an attempt by battery developers to get rid of the main disadvantages of Ni-Cd. But to say with full responsibility that this is a good step is still impossible.

Advantages of such batteries:

• Their production and disposal are environmentally friendly.
• High charge capacity, which can quite reach 3Ah. And this, coupled with a more compact size of the battery itself. Accordingly, the specific power of the power supply is higher.
• The negative effect of memory is no longer so significant, oneako, it was not possible to completely get rid of it.

Disadvantages of such batteries:

• Their price is significantly higher than nickel-cadmium.
• Low duration of "active life" - the number of recharge cycles rarely exceeds 500.
• Such batteries are characterized by a high level of self-discharge - the drop can reach up to 10% on the first day of storage after a full charge.
• The performance of batteries is sharply reduced when working in conditions of negative temperatures.
• These batteries must not be stored in a fully discharged state.

In short, the high price of such batteries looks unjustified. It is better to purchase or a cheaper running option - nickel-cadmium, or don’t be stingy anymore and choose a screwdriver with lithium-ion batteries.

By the way, nickel-metal hydride batteries have not received much development, and tool kits with them are quite rare on sale - due to the low demand for them.

• Li-ion batteries (Li—ion)

These are the most modern and, accordingly, perfect batteries for autonomous power tools.

The most modern, powerful and capacious - lithium-ion batteries

The advantages of such batteries are as follows:

• The memory effect is practically absent, that is, you can recharge the battery at any degree of its discharge.
• Among all other batteries, lithium-ion batteries have the highest charge capacity and power density.
• Charging speed is the fastest.
• But the effect of self-discharge is extremely weak. It is considered normal that for a year of storage under normal conditions, a high-quality lithium battery can lose no more than 20% of its charge.
• The term of active life, the allowable number of charging cycles of such a battery is three times, or even more, exceeds similar indicators nickel-cadmium.

There are also several disadvantages:

• High cost is a rather conditional disadvantage, since high performance justifies it.
• The operating temperature range of lithium-ion batteries is quite wide, and they can be used in frosty conditions (although they lose some of their characteristics). But they will not perceive charging at negative temperatures.
• A complete discharge of the battery is categorically unacceptable - it will not charge from scratch. Manufacturers take into account this drawback, and equip their products with special built-in electronic circuits that will not allow a full discharge. In addition, very widespread the trend is to equip batteries with charge level indicators - this makes it easier to visually monitor them.

When choosing the right model, it is best to purchase a kit that includes two batteries. This way you can ensure the continuity of large-scale work - while one battery is standing on a screwdriver, the second one is being charged. True, when using Ni-Cd batteries, you should always keep in mind the need to fully discharge them so as not to cause a “memory effect”.

Very often, in the technical documentation of the product, the manufacturer indicates the average duration of charging batteries - the shorter it is, the more convenient the tool will be to use.

Well, for those users who do not want to mess with batteries, and who are not afraid of the power cord stretching from the tool, it remains to be advised to purchase a network model.

The performance of the tool does not suffer from this, but the amenities, of course, somewhat smaller. When choosing, it remains to pay attention only to the length of the cord - so that it is enough for the specific conditions of the intended operation.

Electromechanical qualities of a screwdriver

• A few words about the drive. In most models of the low price range, the already old and proven scheme with a brush collector is used. Such engines are quite reliable, but still not without flaws. And the main one is significant friction forces at the place where the brushes fit to the collector lamellae. Naturally, this is accompanied by a significant release of thermal energy, and the drive heats up quite quickly. In addition, sparking of the brushes on the collector is not excluded, especially if you have to work in conditions high humidity air.

All these shortcomings are deprived of a brushless motor with electronic control. The absence of an additional friction area leads to a sharp increase in tool performance. So. tests carried out on similar models with batteries of exactly the same characteristics showed that a screwdriver with a brushless motor did almost three times more work than with a commutator one.

Brushless and frameless motor "DeWalt"

Some manufacturers (for example, DeWalt) decided to get rid of the engine housing - all its components are located directly in the housing of the screwdriver itself. And this is not a trifle at all - it turned out to be a significant gain in the total mass of the tool, which has become much more convenient to work with.

So, if there is a choice between a conventional and brushless drive, it would be wiser to make a decision in favor of the latter. True, this is reflected in the price of the instrument.

• When choosing, be sure to clarify what materials the screwdriver gearbox is made of. This mechanical assembly is subjected to the greatest loads, and its quality will determine the functionality and overall life of the entire tool.

It cannot be said that plastic gears- poor quality, but still their resource is less than that of solid metal ones. And the deformation of even one tooth on any of the gears entails jamming or complete destruction of the entire kinematic scheme reducer. So it is better to make a choice in favor of metal ones.

• Characteristics of the speed of rotation of the working spindle - they are always indicated in the product passport. It probably does not make sense to chase after too high indicators - to perform installation and dismantling operations with fasteners an excess of 500 rpm is enough, and for drilling wood or metal - about 1200 ÷ 1500 rpm. Higher speeds are inherent in a professional tool for performing specific operations, and are unlikely to be in demand at the household level.

Rotation speed adjustment from zero to the maximum is made by changing the force of pressing the trigger (key). For a more comfortable performance of basic operations, you should choose a screwdriver, which has the ability to switch the gearbox to high and low speeds. Usually the switch is located on top of the case.

• Maximum torque is an important characteristic that envy the functionality of a screwdriver.

So, to work only with small fasteners, 10 Nm is enough, but it will be more like an electric screwdriver. In order for the screwdriver to perform simple drilling operations, it is better to select a model with a maximum force of at least 25 Nm. Respectively. in the case when more is expected from the tool - for example, drilling wood with large-diameter crowns or metal, choose screws rt with a torque of 36 Nm or more.

For many consumers, torque values ​​expressed in newton meters. They can say little. Therefore, the technical documentation of screwdrivers usually additionally indicates the maximum diameters of drills, separately - for processing metal and wood. This will make it much easier to make a choice.

• Torque adjustment (tightening torque) - is on almost all screwdrivers. As a rule, this is a rotating ring with a printed scale - from the minimum value to the maximum value used for drilling.

If the set force is exceeded, the ratchet or slip clutch is activated, and the excessive torque is not transmitted to the fastener.

The numbers on the scale show only the serial number of a particular switch position as the tightening torque increases, but are in no way connected (as some inexperienced users mistakenly believe) with the diameters of the fasteners. The drill symbol indicates the maximum torque required to drill.

• There is a rotation direction switch on all, probably, models - without it, screws rt will simply cease to be so. Usually located above the start key (trigger). In some miniature screwdrivers (like a cordless screwdriver) two different keys can be provided - for forward and reverse rotation of the spindle.

Cartridge type

Most modern screwdrivers are equipped with quick-release chucks, making it easy to change bits or drills.

Keyless chucks can be single or double sleeve.

In a two-sleeve chuck, when installing and removing a working tool, the lower sleeve is held by hand, and the upper sleeve is tightened or, conversely, released. It is even easier to work with a single sleeve - the whole operation is performed with the movement of one hand. True, at the same time, the screwdriver itself must be equipped with a spindle lock function. Such blocking can be automatic, triggered when the rotation stops, or forced (there is a special button).

By the way, when choosing a screwdriver, be sure to clarify whether the tool has the option of forced spindle braking - when the trigger is released, the rotation should immediately stop. Almost all modern instruments they are equipped with such a function, but if you still come across an outdated model, the cartridge of which continues to rotate by inertia after the power is turned off, you should not purchase it, as it will cause a lot of inconvenience in work.

Jaw chucks that require special key, are rarely used with screwdrivers. The key tends to disappear forever in the course of work, and the process of replacing the drill requires a lot of time and additional effort. Nevertheless, many craftsmen include such a chuck in their kit, since sometimes for drilling that requires significant effort, the tightening force of the coupling chuck may not be enough.

If the choice is made with the expectation of the minimum dimensions of the screwdriver and with its predominant use for screwing fasteners, then you can purchase a model without a cartridge at all - with an adapter for a ¼ inch hexagon.

On the right is a compact screwdriver with a removable chuck with a hex shank for a standard adapter

In this case, if you need to make any small drilling operations, you can use a small chuck with an adapted hex shank.

Additional criteria for choosing a screwdriver

Many models of modern screwdrivers are equipped with additional useful features.

• In addition to rotational, it can also be provided for impact force on the tool chuck. This allows holes to be drilled in some building materials. Such screwdrivers have a switch between normal and impact modes. It can be located both on the torque switching ring, and taken out separately.

Many models of hammer drills come with an optional detachable side handle to accentuate forward force when drilling.

By purchasing a similar screw rt, it should still be quite realistic to imagine that he can cope with brick wall or made of some kind of lightweight concrete (gas silicate). If you need to drill holes in reinforced concrete structures, for example, in the walls or ceiling of a panel house, it is better to have a perforator for such operations.

• A great help in the work can be the presence of a pulsed mode of operation of the tool - by analogy with impact wrenches. This allows you to cope with soured threaded connections or accurately mark the start of the drill in dense material.

The inclusion of the pulse mode can be on the torque adjustment ring, or it can be performed in the form of a separate button, pressed as needed.

• An additional convenience when working will be the presence of a built-in backlight. The LED "flashlight" can be located coaxially with the body, under the cartridge. However, as practice shows, this is not always convenient - the cartridge itself can obscure the area of ​​\u200b\u200bwork.

Another location for the flashlight is at the bottom of the pistol grip. The stream of light is directed in this case so that it completely illuminates working area from below.

The convenience of a particular lighting scheme can be assessed when choosing a tool.

• The most important selection criterion is the weight, balance of the tool, the convenience of its location in the palm of your hand. If work at height is expected, then more attention should be paid to lightweight compact models. And in t for frequent drilling operations, the weight of the tool even becomes a certain help in the work.

But in any case, when assessing the “acceleration” of a screwdriver in a store, one should evaluate the location of the center of gravity of the tool - moving forward or backward gives a quick fatigue of the hand.

Experienced craftsmen are advised to evaluate the place of transition from the handle to the trigger - it should be with a smooth transition at an obtuse angle. A right-angled or sharp-angled transition will cause the middle finger to quickly fatigue during large-scale work, and may even cause the formation of a corn on it.

• Be sure to evaluate the equipment of the delivery set.

- The kit includes a charger with a power cord. Modern "chargers" - this is a thoughtful electronic circuit, which will not allow the battery to overheat, will automatically turn off when the upper limit of charging is reached.

As noted above, you should not buy a screwdriver, equipped with only one battery. - it is extremely inconvenient to work.

- The kit may include a flashlight - as additional lighting during work or as a device for the necessary complete discharge nickel-cadmium batteries.

- Often, screwdrivers are equipped with special belts or even holster covers for the convenience of placing the tool on the master's belt when working at height.

— To the included bits and drills m Many professionals are quite skeptical, preferring to purchase the required types separately. However, leading manufacturers equip their kits with enough equipment high level. True, the specification is not always sufficient, and the need for an additional purchase most often arises.

- Professional-grade screwdrivers can be additionally equipped with replaceable gear units. Example - model " FESTOOL C15» .

Screwdriver "FESTOOL C15" - a model of increased versatility

In addition to the adapter for hex bits, a keyless chuck can be installed on the tool. In addition, the kit includes a reducer nozzle that allows drilling and tightening fasteners at an angle of 90 °. More it is a replaceable nozzle - this is an eccentric that transmits rotation to the drill or bits with an offset from the axis of the screwdriver. A very handy feature for working in a corner, where the body of a conventional tool does not allow for a perpendicular application of force.

True, the price of such kits is very high.

Brands you can trust

An important selection criterion should always be the manufacturer and availability in a particular region. after-sales service of this brand.

• Without any doubt you can buy Makita screwdrivers - this company has always been a leader in the production of power tools.

Prices and model range of Makita screwdrivers

Screwdrivers Makita

• Wide the lineup, from inexpensive household to professional tools the Bosch company offers. Regardless of the class of screwdrivers , they are all of the highest quality and reliability .
• The AEG tool cannot be called cheap, but it fully justifies the money invested in it.

Prices and model range of AEG screwdrivers

Screwdrivers AEG

- it's high functionality, but still their price looks unreasonably high, despite the tempting manufacturer's warranty.

Prices and model range of Hitachi screwdrivers

Screwdrivers Hitachi

• Among domestic manufacturers, it is quite possible to put Interskol, Caliber, Zubr in this series. Perhaps, in certain positions they lose to the novelties of the world's leading manufacturers, but in terms of reliability, service availability and price level, they are a very attractive choice.

Prices and model range of Interskol screwdrivers

Screwdrivers Interskol

But to acquire a “pig in a poke”, under an unknown delirium, most often made in China, is, of course, a “lottery”. It is quite possible that such a screwdriver will last a long time, and will fully cope with the tasks assigned to it. However, in the event of a failure, it is not necessary to rely on any technical support or warranty. And with spare parts for self-repair, big problems can arise.

And at the end of the publication - a very voluminous and informative video lecture on choosing the best screwdriver.

Video: the right approach to choosing screwdriver