How to punch a hole in a concrete wall. How to drill a concrete wall - a possible way out

From the author: good day. Now my story will be about how I broke the drill and drill, and also chipped off a piece of the wall, just trying to make a hole in order to put the cable through new outlet. Before I tell you how it happened, I will clarify where I got the knowledge and experience in such a matter.

The wall I broke the drill against was brick. After this incident, not knowing how to drill a concrete wall correctly, I began to consult with my familiar builders, read articles on the Internet and analyze the incorrectness of my actions. Having synthesized all the knowledge and made a couple of conclusions, I am ready to present you a few lines on this topic. Let's start.

What mistakes have I made and what should you not make?

The wall I drilled was quite thick. About thirty centimeters. She stood as a barrier between the kitchen and the loggia. Why drill? I'm not a big fan of ducts and I think that they look as unaesthetic as possible, so it's better to make one small hole in the wall to pass the cable through, and not spoil appearance a bunch of plastic.

Armed with a hammer drill, I set to work. The first mistake I made was putting too much pressure on the wall at the beginning of the drilling process. You see, if the drill is quite long, then excessive pressure on it creates unnecessary deformation, which leads either to break the drill itself or to loosen the chuck.

In my case, it was the second option, and the cartridge was practically torn off the base due to the vibrations created. Fortunately, I had a puncher at home, and I easily did the same procedure without any problems.

I will explain why I did not immediately use the puncher, because it is intended for this. The answer is simple. I knew that the wall brickwork, which means that it is an order of magnitude softer than concrete. Therefore, the use of an impact drill seemed to me optimal. There was no desire to get a huge puncher from the pantry, in my opinion, but the miser pays twice.

The second attempt to take the brick wall was successful. The next step was holes in the concrete ceiling plate, which were supposed to keep profiles for . I used an order of magnitude smaller drill for this. It was eight millimeters in diameter and about 9–10 centimeters long.

Already with a hammer drill in hand, I climbed the ladder, raised my head up, chose a place and began to drill. The plate didn't work for me. I decided that the effort was not enough, and it would be quite reasonable to push even harder. Having pressed, all I managed to see is the moment of breaking the drill into two halves, lasting one moment, and how the upper (broken off) part falls right into my eye.

Not having time to react to the attack of the drill, I, petrified, just stood there. The fragment hit the goggles, fought off and crashed to the ground. At that moment, I realized that it was not in vain that I studied safety precautions so diligently and always follow it. Otherwise, he would have been left without an eye out of stupidity. The mistake this time was that next to the Pobedit drill I needed for working with concrete walls and slabs, there was another, ordinary one, which looked barely different from the necessary one.

A mistake was made, but not in vain. You see, an ordinary drill, albeit barely, but drills concrete. It made a small hole in the ceiling, allowing the drill not to slide on the surface. The main thing is not to overdo it when doing it.

So the mistakes I made:

too much pressure on the drill when drilling a hole;
made a mistake when choosing a drill;
overestimated the talent of the impact drill.

Avoid these mistakes and, using the instructions below, you will easily achieve the desired result.

I would also like to reiterate extra attention on safety equipment. Quite a few people neglect even the use of safety goggles, eventually damaging their eyes and, in best case losing sight. It is not difficult for anyone to put a little plastic on their face to stay intact.

Algorithm for the correct drilling of a concrete wall

The first thing you should know is that the drill should enter perpendicularly, creating a right angle between the drill and the plane of the wall. Otherwise, you may damage your hands, the tool, or the surface itself by creating unwanted scratches on it.

When drilling in concrete, this is not the most important, but if you are not used to these rules, then when working on ceramic surface or tiles, you can stay with garbage in your hands, and making a hole in the wall with or plaster molding, you will not have time to change your mind, as tears of farewell to your favorite decor will flow from your eyes.

If you do not have enough physical strength to evenly hold the hammer or drill with one hand, then we advise you to use the additional handle that always comes with any hand tool. When working, do not hold the drill by the body, as you can get hit by a small discharge of electricity.

Choose a drill that is designed to create holes in concrete structures. It has a victorious tip, and in the common people it was called the “victorious drill”. What is win? This is an alloy of cobalt and tungsten carbide, which has insane hardness and strength. If you need to create a hole in a concrete wall to install a new outlet, then there are special drill bits for this job with pobedite tips that will make your job easier. So, we have decided on the nozzle. Now it's time to do the same with the tool.

You can use both an impact drill and a hammer drill. Depending on how deep the hole should be and what its width is. If its diameter exceeds the mark of thirteen millimeters, then the puncher will be a more reliable gadget.

Little hack: do not rush to immediately drill a hole by adding high speed and pressing hard on the drill. First, make a small indentation, as I did, which will allow the drill to not move from side to side and not slide along the entire surface of the wall. And one more piece of advice. While working, dip the drill bit into a glass of water from time to time so that it does not overheat.

Too lazy to clean up afterwards?

Is it possible without dust? A fairly adequate desire in this case is to simplify the process by the absence of dust after it is over, because hardly anyone enjoys cleaning. Yes, you can’t find anything on Aliexpress and Ebay, but nothing is better than independent inventions that will save you money and amuse others.

A fairly common way to collect dust is to create a small envelope. Place it under the place where you will drill, and take out the video camera to amuse your friends later.

One of the examples of how the minder works in the video below:

I will share personal experience. More precisely, the experience of my father, who in any situation finds a sound solution. Before starting to drill something, he takes the vacuum cleaner and calls for someone who is closest. Further on the algorithm.

Before you bring the vacuum cleaner tube to the place where you will make a hole, turn it on.
Catch the dust falling on the floor during the drilling process with a vacuum cleaner.
Do not force anyone to clean up after you and do not suffer from this process yourself.

Be careful in your work and be happy in life. Good luck!

Drilling holes in the wall must be done both during capital construction and in everyday life. And in this matter, everything depends on the material of the base plane and the diameter of the hole. Therefore, it is necessary to choose the right material for the manufacture of the drill. After all, there is a significant difference here.

A drill for making a hole in a brick will not withstand concrete and will simply burn out. Today we will look at how holes are made in different materials. Also on the video in this article and the photo you can find out the options for the tool and choose the one you need.

It is quite easy to carry out installation by drilling recesses in our time. If a person is trained and correctly uses modern electric tools, there will be no difficulty. To keep your home clean after work, use a jig that allows you to drill with a minimum of dirt and dust.

It is easiest to make a hole in the wall with a perforator, which is what professionals advise to use. He is the most in the best way will cope with the most durable materials in the wall and nothing better has yet been invented. But such a power tool is expensive and not everyone can buy it for home use. An electric drill with a blow effect will help to make holes in the wall.

Cutting holes in the walls in most cases is done with a drill. This tool is in almost every family, and experts give their recommendations, they will expand the scope of the drill.

Attention: When choosing a drill, carefully read technical descriptions. The power of the electrical appliance must be at least 600 W, and the revolutions can be no more than 2500 per minute, and this is in the mode of their regulation.

So:

Reverse is required, which changes the rotation of the drill clockwise and counterclockwise. Choose a model with a keyless chuck, only then you will not spend extra time in search of a key to replace the drill.

Do not forget that the device must have a shock function. It will help to cope with any complexity of the wall surface, and drilling holes will be quite easy and simple. And that's all, because materials such as bricks, cement or concrete are quickly destroyed by dynamic actions, namely, by impacts. If the electric drill is not equipped with such an impact function, then the simplest drilling process will take a long time. The drill will cling to the composition located in the wall and at the same time get very hot, but this will be of little use. Here is such a feature as impact drilling is generally different. This is something like chiselling.

How to choose the right drill

Probably everyone has seen a huge assortment of different types of drills in shops and markets. Now we will figure out which one is best to use. It is not difficult to drill a wooden, plasterboard or foam concrete wall surface with the most conventional drill.

Now, if the material is brick, stone or concrete, then it is better to choose a drill made of hard alloys. Unlike the previous one, it has victorious cutting inserts. Welded elements are visible on the edge.

If your house has at least a couple of such drills with sizes from 6 mm. up to 8 mm is already fine, be sure they will still be needed. With their help, you can make a hole up to 20 cm deep.

When you need to make a large hole, you need to purchase a drill. They drill dense surfaces almost a meter deep, but only with a hammer drill, an ordinary drill will not help here.

So:

The drills have tails with a diameter of 15 mm. and more, there are grooves that serve for fastening. But if the drill works as a puncher, then they are clamped quite well in the cartridge. The characteristic of the drill is on the tail itself.
If you need to drill a solid surface, this process is divided into several stages, drilling will be safe and fast.
First, a drill up to 20 cm long is selected. Designed to a depth of almost 15 cm.
Next, use a long drill designed for 35 cm.
Drilling ends with a 50 cm drill. This requires a powerful drill, but notice earlier, we mentioned that it is not designed for heavy loads, except for individual cases.
If buying a rotary hammer is not an option, rent one for a few hours.

Attention: Punching a hole in the wall d=150 mm or more is best done with a drill. They are quite large in length and they have a secure mount in the cartridge.

Safe drilling of recesses in the wall

It is quite possible to drill a hole in the wall with your own hands. But at the same time, everything must be done quickly, efficiently and safely. For different material walls have their own instructions on the rules for doing work. We read about this in detail below.

Attention: Before starting work, carefully examine the surface of the walls, make sure that there are no electrical or other cables in the places for drilling. Through haste and inattention, the wires will be damaged, and it can be even worse under threat own health. You ask, how not to get into the cable? Now we will understand everything in detail.

What to do in order not to get into the wire

There are switches or sockets on the walls, carefully inspect their presence. From them, network wires diverge vertically and go straight to junction box.

If this is the case, then this is ideal, but rare. Usually electricians do not always follow the rules, in order to save the cable, it is carried out diagonally.

So:

Most often, devices are used to check for the presence of a cable, their price is not high and the determination is fast enough.
If you do not have a device, then you should know that the wire is at a depth of up to 10 mm. To check for its presence, very carefully, using any blunt tool, gouge the surface. If you didn’t find the presence of a cable there, then you can safely drill. Experts advise making the recess a little larger, let it be 20 mm.
Do not press the drill too hard against the wall and check every few millimeters for any wiring. Also in specialized stores you can purchase a special device that determines where the wire is located. electrical network. Be sure to ask about the quality when buying and choose the best one, from it correct operation own health depends. Also, during normal and folded operation of the device, you can find the place where the reinforcement passes in concrete surfaces.
A copper electrical wire can be found quickly if it is recessed at a depth of 10 mm. But the aluminum cable is determined only if the device has the function of a metal detector. When searching, constantly look at the indicator, which is equipped with an LED light and it also emits a signal, so be careful, your "assistant" will give a sign.
In the metal detector mode, if an electric wire is located, the diode will light up and you will hear a continuous sound. Every normal device should have a sensitivity regulator. The power supply of the finder depends on the battery of the Krona.

Attention: Not a single builder involved in the installation of suspended and tension structures on the ceiling surface. The fact is that the systems are fixed with self-tapping screws on the ceiling itself, and there are all the electricity cables.

Drilling holes in reinforced concrete or brick

Now consider how to make a hole in a concrete wall and a brick one. Brick is easily drilled with a drill bit.

To the place where drilling will be carried out, attach a jig and drill a slot, the speed of the power tool should not be high, the drill should not overheat.

If the surface of the walls or ceiling is made of durable cement, then drilling them is quite difficult. Usually the material is selected grade 400, work on it is carried out quickly without much difficulty. Perhaps, if the building is still of an old construction, then there is strong concrete and the drilling process will be delayed.

For quality, manufacturers put iron reinforcement into wall panels and blocks - these are such twigs with a thickness of no more than 20 mm. and may add gravel. A drill from a Pobedit will not cope with such a task.
There is always a way out, when it became clear that the drill found the fittings, use a conventional drill. If it was not there at the right time, you can move the place for deepening up or down diagonally.
Granite crushed stone crumbles in the wall from the blows of the drill, beware that during this process the tool sometimes jams to make it easier to turn the mechanism four turns.
When the obstruction has been removed, continue to drill the surface with the Pobedite drill. The puncher and drill will cope with the problem quickly and drilling holes will be much more successful.

Holes in tiles

If you need to make a hole in the tile, use a drill that has welded protrusions and they are made in the form of teeth. This is the tile drill bit.

But sometimes you need to make a small hole and the crown will not fit. Then make a mark in place.

For such a process, select a core, if it was not found, use an ordinary self-tapping screw or a thick carnation with a sharp tip. Carefully remove the glaze from the tile where you will drill the hole. At the same time, set the tool revolutions to small, as for a brick surface.
After when the glaze is removed, then we make a hole with a small drill.
After that, we expand it to desired diameter thicker drill.

Large recesses in the wall

When mounted ventilation systems you need to make a wide recess - 20 mm. Sometimes a meter showing electricity indicators is hidden in the wall, then in general you need to make a niche on the surface. AT own house this is done with a carbide drill.

So:

Carefully mark a recess on the wall with a pencil.. Holes are drilled on the wall from the outside with a drill with a diameter of at least 5 mm. at a distance of 15 mm.
To deepen up to 20 cm, you need to perform almost 30 turns with a drill. Only then remove the materials with a chisel or hammer, making a niche from the wall the right sizes. If a drill diameter smaller, the edges will turn out neat, but for this you will need to make a large number of holes.

It may be that the surface of the wall is hard enough, and in order to get a through recess, the drilling stages are divided into several processes:

If it is possible to drill the surface on both sides, then do it on one side first, and only then make a full through recess. And repeat the steps taken until the hole satisfies you.
When it is not possible to drill the surface of the wall, from one side and the other, then do the processes in turn in several steps. From the previously made mark, draw another line, and as soon as you have chosen not desired material you can go deep with a drill into a niche without touching the edges on the wall. To make work easier, choose a long drill at the very beginning.

Tips for making the most accurate drilling

It turns out that there is nothing difficult in drilling recesses in the surface of the walls:

On the side of the conductor, glue the sheet with adhesive tape or glue sandpaper. Its size depends on the area where the hole will be. Thus, the adhesion of the device to the wall surface will increase and you will accurately make the perfect hole in the right place. It is also quite possible to use a stationary limiter. Its price is not high and can be purchased at retail chains.

Sometimes you need to drill a hole for the dowel, they can be different diameters, but usually it is up to 10 mm. It all depends on what you will hang and its weight and, of course, on the density of the material in the wall.
To make the jig universal, drill a couple of holes of the right size in it with a regular drill so that the device can be hung.
It is possible to attach a plate to the conductor, thanks to which such a shelf will protect the surface finish of the walls from dust and debris. You can use such a fixture when making recesses for attaching skirting boards to the floor and wall.
Measure the places on the jig of the required dimensions at the selected height from the shelf, and drill holes. In order to make recesses, simply place the shelf on the floor, and all the cracks will be obtained strictly in size and the desired height. Doing the installation, gradually adhering to the rules, the plinth will lie tightly on the floor surface.
If you need to hang on the wall, some decorative element- it can be a picture, a photo frame and much more, you cannot cope without an auxiliary conductor. The fact is that the holes should be at a clear distance between them. In general, consider your own wishes and a single style of the room.
To make it yourself, the jig that serves for the most correct drilling of holes, pick up plywood or a metal sheet. Make a markup on it and do right amount recesses with a conventional drill.

Let's consider the option when you need to fasten parts not on one screw, but on several:

The first hole is drilled on the wall, and the second is made equal in size to the size of the self-tapping screw. For precise deepening, use a jig. And then a dowel is driven into the hole.
You can screw the conductor to the wall surface with a self-tapping screw and a dowel, level it with a water level, so your drilled recesses will turn out to be even on one horizontal line.
Using a simple jig, which, as you already understood, can be done with your own hands in just half an hour, deepening drilled will be exactly the right distance apart.
Considering this technology you can make holes in a fairly large gap. To do this, drill holes first, in the same way as previously discussed, then screw the jig on both sides with self-tapping screws and make the rest of the recesses with a drill.

Attention: If you are thinking of passing a cable through a hole in the wall, then make it 20% larger, because it should lie freely and not be pinched.

How to drill a hole large diameter in the wall you now know. Take your time and apply the correct markup. Using the limiters, you will make the desired depth and diameter. hole in brick wall It's not hard work, but it does require precision.

Good day, Victor!

In the life of every person there are situations when you need to hang a picture, a lamp, a shelf or something else. And if there is no puncher, then the question arises: how to do it and whether it makes sense to spend money on this device, taking into account the fact that, perhaps, next time it will come in handy not too soon. You can torment a poor drill for a long time or ask friends, neighbors or relatives for a hammer drill. Let's also consider some other interesting options.

What are the experts talking about?

There is no doubt that concrete structures are strong enough and difficult to drill. It is worth adding to this that you can stumble upon rubble included in concrete mix, from which the plates are made.

You can solve the problem of drilling holes in the following ways:

using a drill that has a percussion function using a drill drill;
another method is diamond drilling, but here you must be extremely careful not to break the entire wall.

It must be said right away that it is quite difficult to make a hole in a concrete wall with a simple drill, so at the beginning of work it is worth buying special drills with plates that are made of victorious, that is, a material that can cope with concrete and brick. Working with soft materials such drills should not be used, as they will simply turn them into crumbs, and not cut them.

Help for the home master

If you need to drill a small number of holes, you can use a drill that does not have an impact function. In the case when a dense inclusion is found in the concrete of the wall, it is necessary to crush it with a punch - a pin made of solid metal, equal in diameter to the future hole. At such a moment, you need to insert a punch into the hole and hit it with a hammer, while trying to crush difficult areas and increase the hole in depth. It is necessary to periodically turn the pin. Then you need to continue to work with a hammerless drill.

All these actions should be done until the very moment when the hole becomes the required depth. The described method is undoubtedly quite complicated, as well as tedious, but if you want to make a couple of holes in the wall, then it is quite suitable.

Other drilling option

Another option is to consider drilling concrete using universal drills that have a diamond coating. They have good efficiency when working with a wide variety of durable materials. You can install them on a simple electric drill, as well as any other instrument with the vibration function turned off.

It is worth working with a drill very carefully, otherwise it will break quickly enough. The tip of the drill should be periodically wetted with water so that it does not smoke and fail completely.

Thus, in order to drill holes without using a puncher, you need a drill that has a percussion function, and you should also immediately stock up on pobedite tips. The diameter of the holes when drilling with a drill should not be more than 12 millimeters in diameter.

I would like to wish you success in your renovation!

Sincerely, Alexander.

Comments:

How to drill concrete? This question often arises among craftsmen during the construction and repair of dwellings with. It is necessary to drill concrete in order to install electrical sockets and switches, lay pipes, wires and other communications.

When drilling concrete, a beginner faces a lot of problems, such as a broken drill, or even a drill.

Concrete is very durable material. drilling in the usual way he fits in very badly. And if it is reinforced (reinforced concrete), this task becomes almost impossible with a conventional drill. How to drill concrete? The problem of making holes in this material is becoming more and more popular.

How to drill concrete?

The main tools for drilling such structures today are a drill equipped with an impact mechanism and a hammer drill. Correctly drill concrete with a hammer drill. It's designed for just that. Holes made by a perforator may have enough big sizes both in depth and diameter. It is possible to drill a wall using special working tools with carbide coating or victorious inserts. The most common ways to use this tool are:

The most powerful drilling tool concrete structures is a perforator.

usage conventional tool with the additional use of a punch;
the use of a hammer drill or impact drill, equipped with special tools;
drilling with diamond tools.

It is very difficult to make a hole in the wall in the usual way, and it takes a lot of time. The tool quickly becomes blunt and fails. How to drill a wall? The drilling point must constantly receive rotational and impact action. The rotational movement is achieved with a drill, and the impact movement is achieved with a punch and a hammer. An old drill can be used as a punch. Hammer strikes on its butt. In this case, the concrete layer is partially destroyed. Destroyed particles are removed with a drill. The hole is slowly deepening. The most common method is to make holes with a puncher and a special cutting tool. The work is going pretty fast and well. A small amount of work can be done with an impact drill with a carbide tool.

Diamond drilling is used with sufficient large volumes work. This method allows you to deal with the matter very quickly and without a large number dust. How to get large diameter holes? This is done using diamond-coated bits or carbide inserts. In some cases, special installations with a water vacuum cleaner are used. But usually a perforator copes with such a task quite well. It is recommended to periodically remove the drill from the hole and moisten it with water.

Tools inserted into the drill chuck are usually produced with a diameter of 4 mm or more. The largest diameter is 1.2 cm. Their length can be 40 cm. A plastic dowel is inserted into the finished hole, and a self-tapping screw is screwed into it. The diameter of the dowel must match the diameter of the hole. For hanging cabinets and other pieces of furniture, it is recommended to drill holes and use dowels with a diameter of 8 mm.

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Drills for puncher

The drills used in the puncher are commonly called drills. Drills can have a diameter of 4 mm to 28 mm. At the same time, they have different length(diameter and length in millimeters):

4 — 50;
5 — 100;
6 — 150;
8 — 250;
10 — 540;
12 - more than 1000.

The drill for the perforator has an SDS-plus shank. Other shanks may be used in industrial installations. Making holes with a diameter of 35 mm or more is carried out with tools that are popularly called crowns. Their maximum diameter is 12 cm. Along the perimeter of the crown there are solderings made of pobedit or diamond coating. Crowns work without switching on the percussion mechanism. The hole is drilled in several steps to cutting tool and the engine is cold. Core bits drill well in tiles, so tiled concrete walls can be drilled without changing tools.

You can buy special drills and crowns in numerous tool and construction equipment stores.

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A few tips:

Before fixing the tool in the chuck of a puncher or drill, it must be cleaned of dirt.
The shank of the drill must enter into the cartridge until it stops.
For household drills and rotary hammers, every 15 minutes of work, you need to take a break for 10-15 minutes.
The drill is recommended to be moistened periodically with water.
Before making holes in the wall, make sure that there are no pipes and electrical wiring in it.
You can use a metal detector to find pipes and wires in the wall.
Work should begin with the shock mechanism turned off and at low speeds.
The depth of the hole should be slightly greater than the length of the dowel that will be inserted into it.
The depth of drilling can be noted by screwing a coil of electrical tape onto the drill.
When working, it is recommended to use personal protective equipment.
Better buy drills well-known manufacturers. Great choice Bosch products.
A diamond tool will help you quickly and accurately drill many identical holes.
Drills and drills for concrete cannot be used when drilling metal and wood.

Drilling concrete walls is not a very simple task, but it is quite doable even at home.

When repairing, the question may arise: how to drill a hole in a concrete wall in order to insert a cork or dowel there and hang a shelf, triptych, sconces and other interior elements?

To fix photographs or paintings on a concrete wall, it is not always necessary to make a hole - sometimes a dowel-nail is hammered in for this. But it's better to put fastener into the drilled hole. Power tools allow you to do this quickly. You just need to know how this work is done. If you use a special device (conductor) during operation, you can even avoid a large amount of dust.

How to drill a concrete wall with tools?

To drill a hole in a concrete wall, you will need a power tool. It is most convenient to use a puncher for this purpose, but not every owner has one. The reason is the price of the tool, which makes it unprofitable to purchase it to perform work 1-2 times in six months. More often bought for homework a simple drill impact action.

If you are just getting ready to buy a drill, you need to take into account some nuances when choosing it. By revising specifications pay attention to models with a power of at least 600 watts, revolutions - 2500 per minute. It is necessary to be able to regulate the speed from the smallest to the greatest value. Choose a tool with a keyless chuck and reverse rotation.

Good for making holes in a concrete wall, do not use conventional drill, but with the impact function. Of course, the work will not be the same as using a puncher, but it will go much easier and faster. The reason is this: concrete and cement easily endure pressure, but from dynamic impact they can quickly collapse. When drilling is carried out without impact, the cutting edge of the drill can barely catch on the material. This leads to a slowdown in work, a strong heating of the drill. When working with an impact drill, the drill breaks off part of the material with an edge with each blow, this is similar to chiseling with a chisel.

To properly drill a hole in concrete, you need a carbide drill bit.

His cutting edges can be made from pobedit or artificial diamond. Pobedit drills make a hole to a depth of 10-15 cm. If a greater depth is required, a drill is indispensable. Drills have a length of up to 100 cm, can only be used with a perforator. Its cutting edges are rounded, not sharp (this increases their wear resistance). You can also use a drill for a drill equipped with a hammer drill.

Making holes in thick concrete walls

Drilling a concrete wall can be done as follows: if its thickness is large, first a channel is made to a depth of 15 cm with a drill with a length of 20 cm, then a drill is taken longer, but with the same diameter, and drilled to a depth of 30-35 cm. To complete the channel, you will need a drill 50 cm long with the same diameter as the previous ones. To perform such work, you need a drill with suitable power. As a rule, it will not be enough - for normal work, it is better to use a hammer drill, for example, rent it. Only in exceptional cases is it allowed to use a drill, but working with it will be much more difficult.

How to drill through a wall without damaging the wires?

Before starting drilling, make sure that no wires are laid at the intended point, otherwise you can accidentally damage them or get an electric shock. Inspect the surface for an outlet or switch. From them, wires usually go diagonally or vertically to the junction box. As a rule, the wiring is not recessed to a depth of more than 10 mm. You can check it as follows: gently scratch the wall with a screwdriver to this depth.

If there are no wires along the way, you can start work. But do not forcefully lean on the tool until the channel is 20 mm deep. In the process, you must constantly check if there is a wire in the way. You can also use special device to locate wires.

Conclusion: how and with what to drill large diameter holes?

If hoods are equipped, ventilation ducts, you will need to make holes with a diameter larger than usual, for example, 18 cm. The same may be required when arranging a niche for a counter in the wall.

In this case, you will need a carbide drill. On the wall, the contour of the future hole is drawn with a pencil. By outside lines, holes are drilled in increments of 10 mm, with a diameter of 8-12 mm. For example, for a hole with a diameter of 18 cm, 30 pieces must be made. Then, using a hammer and chisel, material is sampled from the wall.

On the left - drilling with a perforator, on the right - diamond drilling

In order to visually control the depth of the hole when drilling it, a piece of tube of the required length is put on the drill, which must rest against the cartridge. Such a tube (cambric) can be replaced with electrical tape.

To drill into the wall neat hole, it is necessary to treat the selection of the right tool for the job. It is better to perform it with a puncher or a drill with a drill made of carbide material. In order to avoid a large amount of garbage during work, it is necessary to use special devices(like a conductor).

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