When conducting self-repair in an apartment or house there is a need to make a hole in concrete wall. It can be non-through (for fastening) or through (for engineering communications). Let's take a closer look at how to drill a concrete wall using various tools.
For this, it is best to use a hammer drill. This is a professional tool, so you may not have it at hand. But buying one just for repairs is expensive. Therefore, you can use the usual household drill with impact function.
Tool selection
The best option for drilling concrete walls is a drill:
- power 600 W;
- rotation of the working body up to 2500 rpm;
- diameter of clamped drill up to 12 mm in a quick-release chuck;
- with the obligatory presence of reverse.
Drill
To drill concrete you need a drill made of very hard metal. The most commonly used carbide products are those with pobedite or diamond edges. The first option is cheaper, and performance qualities will not yield to the second.
But it is necessary to take into account the fact that using a drill you can make a hole in the wall no more than 15 cm deep. For a through hole you will need a drill.
Boer
To make a hole with a drill, you need a drill with a shank diameter of 10 or 18 mm. The shape of the drill shank has grooves, but they are also perfectly clamped with drill chucks. If there is a need to drill through a thick concrete wall, then it would be correct to use drills of different lengths.
For example, first drill a hole 15 cm deep, then replace the drill and drill a depth of up to 35 cm, then up to 50 cm. True, the deeper you drill into the wall, the more power requires a drill.
Checking the presence of electrical wiring
First of all, it is necessary to determine the drilling location. IN in this case The main point is not to get into the electrical wiring. According to building law, all wires are located only vertically and horizontally. And if there is a socket in front of you, then its wire runs vertically to distribution box. True, embarrassments do happen. This is when electricians decide to save cable or wire. Therefore, there is a possibility that the wiring is not laid as it should.
As you can see, the wiring is located horizontally and vertically.
You can use another option. To do this, use a screwdriver or similar tool to pick out the concrete or plaster at the drilling site. Depth – 5 cm. If you don’t come across the wire, then you can drill.
Drilling process
To make a hole correctly, you need to follow several simple rules. Firstly, for this you need to keep the tool speed up to 400. Secondly, experienced craftsmen advise periodically lowering the drill into cold water. Please note that the drill removed from the concrete wall is very hot, so do not get burned.
Possible obstacles
During the production process, a reinforcing frame is installed in load-bearing wall panels from metal fittings with a diameter of 8-12 mm. Plus everything in concrete mortar can lay crushed stone or gravel. All this is an obstacle to drilling concrete walls.
If the drill hits something hard and the process itself stops, then most likely you hit either a reinforced frame or crushed stone. What to do in this case?
Stone or metal?
First of all, you need to determine whether there is metal or stone under the drill tip. If the depth of the hole is small, then this can be confirmed visually. If it’s deep, then pick up a drill or metal pin with a diameter slightly smaller than the hole, insert the tool inside and hit the free end with a hammer.
If after a few blows you feel that the instrument has broken something and is moving deeper, then it means it was a stone. If nothing happens and the tip of the pin is dull, it means there is reinforcement underneath.
We go around the fittings
It’s clear what to do with the stone. That is, you slowly break it and continue to drill a hole with a drill. But the reinforcement can be drilled with a regular metal drill. Simply replace the Pobedit drill in the chuck with a regular one, drill a hole through the reinforcement, then continue working with the Pobedit tool.
If you don’t have a regular drill at hand, you can shift the direction of the Pobedit drill at an angle (down or to the side). Sometimes it works. By the way, if you use a hammer drill and a drill, then crushed stones are not a problem for these two tools. The drill simply crushes them with impact actions.
Old-fashioned way
More recently, when pobedit drills were in great short supply, and drills with impact functions were new, ordinary drills were used, using unusual technology.
To do this, a pin was made from one drill. Its end could be flat, like a screwdriver, or it could be made conical, like a tap. Periodic drilling and striking were carried out. That is, first a hole was drilled, then a pin was inserted into it, which was struck with a hammer. Then again drilling, then blows. In essence, the person performed the percussion functions of a hammer drill.
The best option
And yet, the question of how to drill a concrete wall may remain completely unanswered if a few words are not said about diamond drills. This is the most quality tool, although expensive compared to Pobeditov. Experts consider them universal, because they can drill almost any material. By the way, the drills themselves are not diamond, they cutting edge Diamond coating applied.
The most important thing is that such a device can be drilled using a drill without an impact function. You need to work with a diamond drill correctly. It, like other types, must be periodically moistened in water to reduce the temperature. High speeds are also unacceptable here.
Sooner or later, most people living in houses with concrete walls need to hang a cabinet, lamp, shelf or picture. At this point, the pressing question arises of how to drill through a concrete wall. It's no secret that everyone House master I have encountered this problem at least once in my life, but not everyone knows how to solve it. Many bravely torture the drill and own strength, but not achieving the required result, they give up everything until the next attempt to make a hole in the wall. But the drill eventually breaks, and the shelves remain standing somewhere in the corner of the room or collecting dust in the pantry. But there are still options - you just need to know them and be able to use them.
Concrete structures are quite strong and difficult to drill. In addition, quite often drills come across crushed stone included in the composition. concrete mixture, from which wall and ceiling slabs are formed.
Holes in concrete have to be made quite often, especially during the process:
- finishing works;
- furniture installation;
- air conditioner suspensions;
- additional electrical wiring device;
- installation of plumbing.
There are two ways to solve the problem of holes in a concrete wall:
- an impact drill, or better yet a hammer drill, with a Pobedit drill bit;
- diamond drilling.
It is worth noting that it will not be possible to make a hole in a concrete wall with ordinary drills, so before starting work you need to purchase drills with specially soldered plates made of high-strength pobedit alloy, which do an excellent job with concrete and brick. But for soft materials It is not recommended to use them, since pobedit drills do not cut them, but crumble them.
What will help the home handyman?
IN living conditions When you need to make 2-3 holes in concrete, you can get by with a regular drill, without the impact function. To do this, it is necessary, as the Pobedit drill is immersed into the body of the wall, to break the concrete from time to time with a strong metal pin (punch) matching in size to the diameter of the hole. It is used when the drill begins to “stick” in the wall. At this moment, a steel punch is inserted into the hole and they begin to hit it with a hammer or sledgehammer, trying to crush areas that are too dense and punch the hole deeper. In this case, the pin is turned a little. Then the hammerless drill can start working again.
All the above steps are repeated one after another until the hole increases to the required depth. This method is quite labor-intensive and tedious, but quite acceptable for a couple of holes.
Alternatively, when drilling a hole in concrete, you can use universal diamond-coated drills. They are highly effective when working with metal, crushed stone and concrete. They can only be installed on a conventional electric drill, or on a tool with the vibration function disabled.
You need to work with the drill extremely carefully, otherwise it will fail too quickly. The advice that professionals give is that to avoid overheating of the drill, it should be moistened with cold water from time to time.
How to choose a tool?
For a larger volume of work, you need a hammer drill or drill with an impact function and drills with pobedite tips. An impact drill combines rotational and reciprocating motion, which helps it cope well with lightweight concrete, and to the question of how to drill through a concrete wall, which is a load-bearing one, there is a simple answer - the best assistant will be a hammer drill, the main purpose of which is to punch through concrete fences. There is one more difference:
- an impact drill is designed to drill holes no more than 12 mm in diameter;
- The hammer drill is capable of drilling large holes.
Reinforcement found in the body of a concrete wall should be drilled using metal drills.
What do you use to drill large holes?
Professionals who are constantly faced with the problem of drilling holes in concrete use special equipment, which includes:
- powerful electric motor;
- drilling drive;
- diamond core drills of different diameters;
- a guide post fixed to the base.
Diamond drilling allows you to make holes large diameter– up to 40 cm. The process occurs quite quickly, efficiently, without unnecessary dust and noise. Water is automatically supplied to the drilling site, which simultaneously cools the diamond bit and washes away dust.
In modern buildings, as a rule, the walls and ceilings are concrete. Sooner or later, the need may arise, for example, to hang a lamp shelf or, during renovation, to sheathe the walls with plasterboard, then the problem arises of how to drill through a concrete wall with a drill.
Difficulty in drilling can arise due to a number of reasons. First, the structure concrete panels is heterogeneous and their composition includes iron reinforcement, cement-sand mortars and crushed stone, which makes drilling difficult. Secondly, concrete has high strength and is very difficult to process.
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How are concrete walls drilled?
Before starting work, it is important to decide which drilling device is best to do the job. The choice, of course, is small, since there are two types of wall drilling:
- drill;
- hammer drill
A hammer drill will do this job better, since its function is precisely to punch holes in concrete or stone surfaces. Using this tool, you can make holes of a large cross-section, but even the highest quality impact drill is not capable of more than 12 cm.
But when you need to drill foam concrete walls, a drill will be optimal, since a hammer drill will simply crumble the surface.
When working with concrete walls, you absolutely cannot use a hammerless drill, because it will be pointless, and you can also damage the tool.
When you only have to make a few holes and you don’t have a hammer drill, you shouldn’t buy one because of this; you can get by with a drill. If you have to big job, then buying a rotary hammer is inevitable.
In the case when you still need to work with a drill, it is important not to forget that you need to use a Pobedit drill for concrete and with a tip coated with a carbide compound.
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Diamond drills and other devices
On store shelves you can sometimes find a model of ring drills with a diamond tip. Such products are intended for drilling huge holes with a cross-section of up to 25 cm. It is important to note that such devices are expensive, therefore for home use they are not worth purchasing.
If there is a need to make a hole for a socket or switch, you can use crowns designed for drilling concrete. Cutting part has universal carbide soldering around the circumference.
Such elements have a cross-section from 35 to 120 mm, but products with a cross-section of 68 mm are in great demand, since this is what sockets and switches have. If you are drilling with a crown, it is important not to forget to turn off the hammer drill’s impact function. This device drills holes with a maximum depth of 15 cm. If greater depth is required, it is recommended to use an extension nozzle.
Similar bits are also sold for electric drills. They differ from the previous ones in that instead of soldering they are equipped with a tungsten carbide alloy coating. The advantages of such a device are that if concrete walls are lined tiles, then there is no point in replacing the nozzle, since it works well on concrete surfaces. But we must not forget that such devices can be used for drills with a power above 1000 W.
Most often, drills are used to work with a hammer drill, the cross-section of which ranges from 4 to 80 mm. Many people are faced with the problem of choosing the correct drill diameter. But the smartest thing to do when purchasing a hammer drill is to also purchase a set of concrete drills. But a high-quality kit costs a lot of money, and therefore it is necessary to select the same cross-section as that of the dowel intended for this model.
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Everyone knows that a concrete wall and that's it similar designs have durable qualities and are difficult to drill, since most often when working you can stumble upon crushed stone included in concrete composition, from which wall and ceiling structures. Holes in concrete slabs during construction are carried out quite often:
- during finishing works;
- when installing built-in furniture;
- when installing air conditioners;
- when installing electrical wiring;
- when installing plumbing fixtures.
During the minor household repairs You can get by with a simple electric drill that is not equipped with an impact function.
To do this, during the process of introducing a Pobedit drill into a concrete surface, you need to periodically crush the concrete with a metal punch, which must correspond to the cross-section of the hole. It is used when, while drilling, an electric drill starts to get stuck in concrete. Then they place the punch in the hole and hit it, using a hammer or sledgehammer, which helps to crush compacted areas and penetrate deeper. But you need to turn the punch slightly, and then you can start working with a hammerless drill again.
These manipulations should be continued until the holes reach the desired depth. This method is very time-consuming, but suitable for several holes.
Of course, you can also use universal drills with diamond tips. They will do an excellent job with metal, crushed stone, as well as concrete structures. But it is important to note that they are only suitable for an ordinary drill or a device with the vibration mode turned off. When using diamond drills, you should remember that they require cooling during operation.
But a good drilling effect can be achieved by using a hammer drill. Its advantages in combining functions rotational movement with reciprocating movement. When drilling with such a drill, the tip of the drill is able to break the concrete composition, and the drilling process will be the least labor-intensive.
Our modern housing is increasingly being built from monolithic reinforced concrete slabs with increased strength. When arranging houses like this, drilling concrete walls causes certain difficulties, and almost every home craftsman has encountered them, probably giving up this idea. In this lesson we will answer in detail next questions, namely: how to drill a concrete wall correctly, how to prepare the surface for drilling and what tools and equipment will be needed for this.
Preparing to drill a wall
Before you start drilling a concrete wall, you need to make sure that there are no water pipes or steam heating. You can check this using a metal detector. This is a special device that reacts to such types of metal as iron, steel, and non-ferrous metals. This device will also help detect conductive electrical cables located close to the drilling site.
Since the concrete wall is a monolith of metal rods and crushed rocks fastened together with sand and cement, then to drill holes you will need special drills made of hard alloys. For these purposes, pobedit drills or universal ones, which have a diamond coating, are suitable. The fittings found in the wall are drilled using metal drills.
How to drill a concrete wall with a drill
Typically, a drill for drilling holes in a concrete wall is used if you need to drill 2-3 pieces of small diameter, for example, to hang a picture, a small cabinet or shelf. If the drill does not have an impact function, then in addition to the Pobedit drill, you will also need a hammer and a metal pin (punch) that matches the diameter of the hole. As the drill sinks into the concrete wall, from time to time it is necessary to insert the punch into the hole and hit it with a hammer to punch through areas that are too dense, not forgetting to turn it a little. Having crushed the dense area with a punch, the process of drilling a concrete wall with a drill can be continued further until you get a hole of the required depth.
This one is enough labor-intensive process can be made much easier and faster if you use an impact drill when drilling holes, but it is better to use for such work.
How to drill a concrete wall with a hammer drill
Since the main purpose of a hammer drill is shock work when processing hard materials, then using it when drilling a concrete wall will come in handy. Using an electro-pneumatic mechanism, the hammer drill makes forward impact movements and creates deep and neat holes. A rotary hammer differs from an impact drill in that its main principle is not drilling, but impact. Thus, the process of drilling a concrete wall with a hammer drill is much faster and better.
Before you start drilling a concrete wall, mark the location of the intended hole with a pencil and select a drill of the required diameter. Next, use a punch or put the tool in the “drilling only” mode to make a small recess. After this, setting the “drilling with impact” mode on the hammer drill, a hole is made to the required depth. At the end of the work, the drill is removed. It is also advisable to remove concrete dust from the hole with a vacuum cleaner.
To drill a concrete wall quickly and efficiently, you can use the tips below:
- a drill is used when it is necessary to drill several shallow holes with a diameter of up to 13 mm; for deeper and wider ones, a hammer drill or special equipment is used;
- When drilling holes for a plastic dowel, make the hole depth 8-10 mm greater than the length of the dowel, because after drilling, dust from crushed material remains in the recess;
- In order for the drilling to be accurate and the drill not to jump on the surface, before starting work it is necessary to switch the equipment to the “drilling” mode without giving the drill high speeds. Next, once a small depression is obtained, you can add speed and switch the instrument to impact mode;
- To prevent the drill from breaking due to overheating, it must be moistened with cold water;
- When drilling holes, be sure to wear safety glasses to prevent crumbs from getting into your eyes;
- The resulting dust can be collected with a vacuum cleaner, holding it near the hole while drilling.
Now you know to keep the holes deep and neat. The video below will clearly show you how to drill a concrete wall using a hammer drill.
A structure whose surface is as difficult to damage as it is to drill. But if such a need nevertheless arises, then with the help of special equipment and compliance with certain rules it is still possible to do this. And now about everything in more detail.
General provisions
Let's first look at why a concrete wall cannot be drilled using conventional methods. And everything lies in the structure of such a durable material:
As you can see, the action of all components is aimed at increasing the strength qualities of the finished product. Particularly critical for conventional drills is crushed stone, which instantly dulls their cutting edges.
And despite all the complexity of processing a concrete wall, the need for this can arise very often.
For example, if you need:
- Hang the shelf on the wall or any other furniture interior.
- Finish with plasterboard.
- Implementation electrical wiring, installation of new sockets and switches. In this case, to lay the wire, reinforced concrete is also cut with diamond wheels.
- Plumbing connection.
Execution technology
We have dealt with the need and the difficulties that arise, now we will look at how to properly drill a concrete wall.
Tool selection
First of all, let's decide what to drill into a concrete wall. , of course, do not fit.
You can choose from the following options:
- Drills tipped from Pobedite. But it should be borne in mind that in addition to rotation, a shock function will also be required.
Advice: should not be used cutting tool with a pobedit for drilling iron or wood, as it will crush them.
- Diamond coated drills. Such edges will be able to cut stone even without impact, but their price is much higher.
But the question of how to drill into a concrete wall is not limited to the choice of consumables.
You also need to decide on the tool:
- Regular drill. Only if you don’t have anything more suitable and you only need to make 2-3 holes. And in this case, from time to time you will have to pierce the concrete layer with a steel pin with your own hands.
- Hammer drill. Will cope with a small amount of work even if the diameter required holes does not exceed 13 mm. The fact is that the impact in such a device is carried out due to a metal “ratchet”, which wears out quite quickly under intense load.
- Hammer. It can handle large volumes and can even use special nozzles in the form of crowns, which are ideal for drilling nests for sockets. In it, the impact is carried out due to the piston system, which is much more powerful and less likely to fail than the “ratchet” of a drill.
The following generalized table will help to summarize and give a final answer to the question of what is the best way to drill concrete walls:
Carrying out work
Now let's figure out how to drill a concrete wall. To do this, let's take a hammer drill as a clear winner of impromptu competitions.
The instructions for its operation are as follows:
- We check the shaft shaft for debris. If we find one, we delete it.
- Insert the drill until it clicks. In this case, in some models it may be necessary to pull the slider part of the “nose” of the tool towards you.
- We bring it strictly perpendicularly and begin to drill, lightly pressing on it.
Tip: wet the working part of the drill with water from time to time. This will protect it from overheating and extend its service life.
- During the drilling process, the drill may get stuck. In this case, you should not try to loosen it in order to pull it out, as you may break off the tip. Simply remove the tool from the device, insert a drill of a smaller diameter and try to use it to widen the hole and free the captive product.
- Monitor the equipment while allowing it to cool.
Conclusion
We looked at how to drill through a concrete wall, the process itself is not that complicated. The main thing is to choose the right tools and follow some rules while working. The most practical and rational decision will be the use of a hammer drill with pobedit drills.
The video in this article will provide you with the opportunity to consider Additional information regarding the presented materials. Be careful and you will succeed!