A structure whose surface is far from easy to damage, as well as drilled. But if such a need nevertheless arose, 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 consider why a concrete wall is not 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. Especially critical for conventional drills is crushed stone, which instantly dulls their cutting edges.
And with 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 drywall.
- Electrical wiring, installation of new sockets and switches. At the same time, for laying the wire, cutting of reinforced concrete with diamond wheels is also performed.
- Plumbing connection.
Execution technology
We have dealt with the need and the difficulties that arise, now we will consider how to properly drill a concrete wall.
Tool selection
First of all, let's decide how to drill a concrete wall. of course they don't fit.
Choose from the following options:
- Drill bits with Pobedit tipped. But it should be borne in mind that in this case, in addition to rotation, an impact function will also be required.
Tip: Don't use a cutting tool with a pobedit to drill through iron or wood, as it will crush them.
- Drill bits with diamond coating. Such edges can cut stone even without impact, but their price is much higher.
But the question of how to drill a concrete wall is not limited to the choice of consumables.
You also need to decide on the tool:
- conventional drill. Only if you have nothing more suitable and you only need to make 2-3 holes. And in this case, from time to time, you will have to break through a layer of concrete with a steel pin with your own hands.
- Drill with impact function. It will cope with a small amount of work even if the diameter of the required holes does not exceed 13 mm. The fact is that the blow in such an apparatus is carried out due to the metal "ratchet", which is quickly erased under intense load.
- Perforator. 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 blow is carried out due to the piston system, which is much more powerful and less likely to fail than the “ratchet” of the 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, take a puncher as a clear winner of impromptu competitions.
Its operating instructions are as follows:
- We check the shaft shaft for debris. If it is found, 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 perpendicular and start drilling, slightly pressing on it.
Tip: Moisten the working part of the drill with water from time to time. This will protect it from overheating and extend the service life.
- During drilling, the drill may get stuck. In this case, do not try to loosen it in order to pull it out, as you can break off the tip. Just remove the tool from the device, insert a drill of a smaller diameter and try to expand the hole with it and release the captive product.
- Keep an eye on the equipment, letting it cool down.
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 during work. The most practical and rational solution would be to use a puncher with victorious drills.
The video in this article will provide you with additional information regarding the materials presented. Be careful and you will succeed!
17.05.2014 08:33
Quite often, during repair work, we have to drill a solid concrete base - be it holes for a hanging shelf, place for a socket or work on installing a new ceiling. And the task is quite difficult, as it may seem at first glance. Moreover, concrete is a very heterogeneous and extremely dense material.
Let's figure out how to properly and the better to drill concrete at home.
How to drill a concrete wall?
1. Ordinary concrete drills are not suitable. It is better to use carbide drills, for example, victorious ones. Such drills for concrete have special brazed inserts made of carbide material at the ends (mainly a mixture of tungsten carbide and cobalt in a ratio of 10 to 90%). Carbide tips are easily recognizable - they have the shape of a kind of "house".
2. If there are few holes planned and they are relatively narrow, then at home you can use a drill with
shock load function. An impact drill at home is suitable for holes in concrete with a diameter of no more than 12-13 mm, otherwise it is better to take a more expensive hammer drill. As for a conventional drill (“non-impact”), it is advisable to use it for concrete only as a last resort, if you do not have other working tools at hand.
3. The hammer drill is suitable for any drilling in concrete - it is more efficient due to its "crushing" function, although it is more expensive than an impact drill. In a hammer drill, the rotation of the drill is combined with its reciprocating motion, which makes the drilling job much faster. A puncher is good when a lot of drilling work is foreseen (for example, when you need to fix the crate to the ceiling or walls). Keep in mind that a hammer drill is more powerful than a drill. Therefore, for example, it is not suitable for foam concrete (cellular concrete), since it will completely “break down” the wall. And when drilling ordinary concrete with a perforator, do not overdo it - make sure that the plaster does not crumble.
4. For the puncher, special drills are used (“SDS Plus” and “SDS-Max”) of various diameters - from 4-5 mm to 7-8 cm. In order not to buy a very expensive complete set of drills, you need to choose drills for the drill by diameter future dowel, and just in case, "plus or minus" a couple of neighbors in size.
5. In addition to drilling with an impact drill and a hammer drill, there is another way - the so-called diamond drilling. Only for this option you need special drilling rigs and diamond drills. This type of drilling in concrete is quite expensive and usually requires a team of repairmen to do it. Diamond drilling is used when a lot of repair work on drilling a concrete base is planned, or large holes or longitudinal grooves are needed (for example, when laying communications in a wall or floor). The advantage of this method is that there is no dust left after the drilling rig - it supplies water to the hole, washing off the dust and cooling the drill.
Stages of concrete drilling
1. Before starting work, be sure to think about whether there are any communications, cables, etc. in this place so as not to damage anything.
3. The outer part of the concrete is usually looser than the inner layers. Therefore, before drilling concrete, be sure to mark and expand the point of the future hole, that is, deepen (thread) the base of the drill entry in this place. This is done so that the drill does not slip and does not move to the side. For core, you can use a hammer and a large sharp nail, a self-tapping screw or a special dowel.
4. Keep the working tool perpendicular to the concrete base during work, otherwise the risk that the drill will break will increase.
5. If you are drilling a hole with an impact drill, switch modes from time to time. In order to “beat” the surface, turn on the “hit” option in the drill.
6. Like a drill, like a drill (perforator), you need to give it a “rest” from time to time - about once every 10-15 minutes. stop work.
7. Another such moment - the same Pobedite drills do not like overheating, therefore, with a strong operational load, their tips must be periodically cooled with water.
8. For concrete work, you will also need a trihedral solid steel punch and a regular hammer - all of a sudden there will be crushed stone in the concrete. By the way, an old victorious drill is also suitable as a punch. If reinforcement or stones (gravel) are encountered during the drilling process, they are removed separately. Reinforcement can be processed with conventional tools (a punch and a traditional drill for metal), but stones lend themselves well only to a punch.
9. Suddenly, you urgently need to make a couple of holes for the shelf, and only an ordinary drill is at hand (without impact mode), then during the drilling process, if necessary, you can periodically insert the punch into the hole and make several blows on it with a hammer, and then turn it in the hole , then - drill again with a drill, etc. Do not forget that the drill itself must be carbide.
10. Periodically remove cement chips and dust from the working hole - they interfere with drilling. They can be removed with a vacuum cleaner or a natural brush.
11. If the drill is stuck - do not loosen it, but carefully disconnect the tool, then put on a larger diameter drill and free the stuck tip, being careful not to touch it.
12. You need to drill holes in concrete 1 cm more than the length of the dowel, so that the latter will easily enter the wall.
Good luck with your repair!
Many people live in houses with, and when it becomes necessary to make a hole in them, they encounter serious difficulties.
Do not despair and be upset if you did not immediately manage to hang a shelf, lamp or cabinet, read our recommendations and everything will work out.
There are several options with which you can drill a concrete wall yourself.
Concrete structures are highly durable, so drilling them yourself is quite difficult.
This is due to the fact that crushed stone is used to create concrete products, and when you hit it during drilling, the process becomes very difficult.
The need to drill a concrete wall arises quite often, it is necessary for the installation of shelves, cabinets, air conditioning, fixing a lamp, at or during the fastening of beacons.
There are several ways to solve this problem:
- using a hammer drill or a powerful impact drill;
- conventional electric drill or screwdriver;
- diamond drilling.
To carry out this work, an ordinary drill is not suitable; it is necessary to purchase tools soldered with a pobedit alloy.
It should be remembered that for walls made of relatively soft materials, it is impossible to use pobedit drills, since the holes will turn out to be uneven and the wall will collapse. It is also impossible to work with metal with such a tool.
To create holes of large diameter or, diamond-coated ring drills are used. To use such a tool, it is necessary to use special installations; they allow you to make holes with a diameter of up to 250 mm. 
Since the cost of such equipment is high, it is easier to hire specialists or you can rent it.
What is the best drilling
As already mentioned, there are several ways to drill a concrete wall, we will consider each of them in more detail.
Perforator
When using a hammer drill or impact drill, they must be switched to impact mode, a working tool with a victorious tip is inserted and it must be directed perpendicular to the wall surface.
If drilling holes takes a long time, then drill needs to be moistened periodically so that it doesn't overheat.
Once you have drilled to the required depth, it is necessary to pull the working tool back without turning off the perforator. To clean the finished hole from dust, it is necessary to deepen and pull out the drill several times.
Standard drill or screwdriver
If you do not have the tools described above, then you can do this work with a conventional electric drill or a powerful screwdriver.
To perform drilling, you will need more time than using a hammer drill, but you can do everything yourself.
In this case, in addition to a drill and a drill, you will also need a punch. First, a small indentation is made at the drilling site with a punch and a hammer.
After that, insert a working tool into it and start drilling. If the drill has stopped, break the hard sections again with a punch and continue to work. 
Although a conventional electric drill or screwdriver is not suitable for working with concrete, but if you do not have a hammer drill, then you can make several small holes with these tools, but you must use a lance-shaped drill with a carbide tip, it is usually used for tiles.
Diamond drilling
This is the most effective method by which you can simply and quickly make a hole of the required diameter in a concrete wall.
To perform these works, you will need special equipment, consisting of the following elements:
- electric motor;
- a stand that is securely fixed to the base;
- drill bit.
During operation, it is not necessary to cool the drill, as water is supplied to it, which not only cools the tool, but also prevents dust from forming.
If specialists work, then together with the specified equipment they use a vacuum cleaner, with which they remove dust and water.
Because the price of such equipment is very high, then it is not advisable to buy it for domestic use. If necessary, make a hole of a large diameter, for this you can always invite specialists.
In order for you to be able to properly drill a concrete wall, you must have the necessary equipment, perform all work carefully and adhere to the following recommendations:
- without a hammer drill, work can be done with an impact drill or drilled with a screwdriver;
- do not buy cheap drills, as their winning tip disappears very quickly and they fail;
- instead of a punch, you can use a victorious tool, with one you will break rubble, and with the second, inserted into a conventional electric drill, drill;
- to work with concrete, the perforator must have an SDS-plus cartridge;
- consider the placement of the reinforcement to determine where it is located, you can use a metal detector if the reinforcement is exposed, it is necessary to prevent rust;
- to work with concrete, you can use universal diamond-coated drills, but you need to insert them only into a regular drill, or you need to turn off the impact mode.
Conclusion
During the performance of these works, it is necessary to adhere to the developed technologies and safety rules, then you can not only make a hole yourself without involving expensive specialists, but also avoid injuries.
Useful video:
How to drill concrete and brick with a screwdriver, video:
In contact with
Concrete is a durable and reliable material. Many, if not most, buildings are constructed from cast-in-situ or precast concrete. As a rule, holes for laying utilities, pipelines, as well as recesses for installing electrical and low-voltage fittings are provided in the process of forming concrete structures. But their location often does not suit the owner of the premises, and holes have to be drilled at new points. Let's try to figure out how best to do it.
Choosing a tool
Initially, you should determine which tool is better and more efficient to drill a concrete wall. In a global sense, the choice is small - an impact drill or a hammer drill. But there can be many nuances, since power tools can be of different power and functionality, there are also many nozzles for it. Therefore, you should define goals and objectives, and then decide which tool you might need. So:
- In order to screw a small screw into the wall under the picture, a lot of effort is not needed. In this case, you can drill through the concrete wall with a conventional drill equipped with a drill bit with a pobedite tip.
- When a small amount of work is expected, and the diameter of the punched holes does not exceed 12 mm, then an impact drill should be chosen.
- A hammer drill is used to drill large diameter holes in concrete, as well as any size, but in significant numbers.
The advantage of a hammer drill over a drill, even with an impact function, is not only greater power and endurance. This tool uses not only drill bits of various sizes and qualities, but also drill bits as a working tip. This is the main device that can be used to drill a hole in concrete for a pipe.
Professional installers, punching large diameter holes in concrete, use special units, which include:
- high power electric motor;
- durable bracket with guide structure;
- drilling drive;
- drilling crowns with a diamond working area.
Such equipment allows you to make a hole or recess in a concrete wall with a diameter of up to 40 cm.
What will win more effectively or a diamond?
When you need to make only a few holes for a construction dowel, and there is no puncher at hand, then using a regular drill with a drill bit is quite realistic. Also, this option is best suited if the working surface is concrete, but made of cellular material. The perforator will destroy it. But, when working with a drill drill, remember that it is short-lived and requires periodic replacement. In addition, such a drill can "drill" into concrete. Then he needs to be helped manually with a punch and a hammer.
Drilling a concrete wall with an impact drill equipped with a diamond-coated bit is much more efficient. Diamond drills are somewhat more expensive than Pobedite ones, but they also last longer. And another important point. Unlike Pobedit, a diamond drill punches holes not only in concrete and stone, but also in ceramic tiles, porcelain stoneware and metal. When working with a diamond tool, it is not scary to stumble upon a reinforcing cage in the wall. It is better to buy drills in a set, which includes drills of various diameters. It's cheaper than buying them one by one.
When a hole with a diameter of 35 to 120 mm is drilled in the wall, diamond crowns are used as a cutting device. They are steel rings with hard-alloy soldering on the working area, covered with diamond coating. For domestic purposes, crowns with a diameter of 6.8 cm are usually used; holes of this diameter are needed for installing electrical sockets and switches.
How to drill concrete
Hole punching, like any other job, requires preparation. In addition to tools and fixtures, you should stock up on water to cool drills and crowns. Before drilling concrete with a drill or hammer, inspect the wall for:
- hidden pipelines of heating, water supply;
- electrical wires, cables.
The search is carried out by a metal detector, mark the identified communications along their entire length. It is better to turn off the electrical wiring on the working surface. Further:
- Mark out the locations of future passages. If holes of large diameter are supposed, then the designation is done along the contour and axes.
- The depth of the hole for the construction dowel is 8-10 mm larger than its size along the length.
- To obtain a more accurate result, it is necessary to drill concrete correctly. This means that the start of drilling should be carried out at low engine speeds.
- After a small depression is obtained, the speed is increased and the tool is switched to impact mode.
- If possible, provide water supply to the drilling site. In the absence of such an option, periodically moisten the drill with water in a pre-prepared container.
- If drilling with a drill is carried out in one position of the tool, then when drilling with a crown, the hammer drill must be slightly rocked. So waste will be easily removed from the resulting hole and the crown will not jam.
The most difficult obstacle to overcome when drilling a concrete wall is the reinforcing cage. The diamond crown cuts steel bars of small diameter independently. When drilling with an impact drill, metal drills should be used to deal with reinforcement.
Wear protective goggles and a respirator. The resulting dust can be conveniently collected with a vacuum cleaner. After every 15 minutes of drilling, let the tool rest for about the same amount of time. To continue working, moisten the drill with water.
Many have probably faced the problem of making a hole in concrete. Of course, everything is easily solved with a perforator. They drill holes very quickly, but noisily. If we are going to make a major overhaul, then only a hammer drill will facilitate our work, speed up the process of performing work. But unfortunately, it is not present in every home. It's all because of the high cost. In addition, it is rarely needed for home use. But almost everyone has a drill. It is more versatile at its low cost. The drill can drill holes, tighten screws and much more. Unfortunately, when it comes time to drill holes in concrete, most hardware store vendors offer drill bits that are soldered.
Once upon a time, I bought such drills myself. I tried to drill holes in concrete in different modes (with impact rotation, without it). I drilled holes with a special construction, very powerful drill the size of a hammer drill. It turned out a little easier, a little faster. I tried to sharpen a victorious solder. This brought results, but not for long. The drill set quickly. Once I had to drill a hole in a tile. A familiar tiler recommended to me a special diamond-coated drill bit.
Also called pen. Drills with a diamond coating are designed for hammerless drilling. They can drill a small number of holes, after which the diamond coating is erased, the drill becomes unusable. Cheap drills are enough for 10 - 15 holes. Expensive up to about fifty. Diamond drill bits must not be overheated. When drilling one hole, you will need to cool it with water 2-4 times. Otherwise, its service life will be drastically reduced. When drilling tiles with a diamond-coated drill, no chips are formed. I decided to drill a hole in the concrete. The result made me happy. The hole turned out quickly, without any effort, most importantly silently. I also cooled the drill. Diamond-coated drills are short, but this is quite enough to hang a baguette, a chandelier, a TV, any furniture... Now I am sure that I will never cause inconvenience to my neighbors.