How to properly drill a concrete wall: professional advice Let’s figure out how and what is the best way to drill concrete at home. How to drill? 1. Conventional drills are not suitable for concrete. It is better to use solid carbide drills, for example, winder.
How to drill a concrete wall?
1. Conventional drills are not suitable for concrete. It is better to use solid carbide drills, for example, winder. Such drills for concrete have at the ends special brazed inserts made of carbide material (mainly a mixture of tungsten carbide and cobalt in a ratio of 10 to 90%). The carbide tips are easily recognizable and are shaped like a house.
2. If the holes are planned to be few and they are relatively narrow, then at home you can use a drill with
Shock loading function. A hammer 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 (hammerless), 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 the hammer drill, the rotation of the drill is combined with its reciprocating motion, which makes the drilling work much faster. The hammer drill is good when a lot of drilling work is foreseen (for example, when you need to fasten the lathing to the ceiling or walls). Consider that the puncher. powerful than a drill. Therefore, for example, for aerated concrete (aerated concrete), it is not suitable, as it will completely destroy the wall. And when drilling ordinary concrete with a hammer drill, do not overdo it. Make sure that the plaster does not fall off.
4. For the hammer drill, special drills (SDS Plus and SDS-Max) of various diameters from 4-5 mm to 7-8 cm are used. In order not to buy a very expensive full set of drills, you need to choose drills for a hammer according to the diameter of the future dowel, and just in case, plus or minus a couple of neighbors in size.
5. In addition to drilling with a hammer drill and hammer drill, there is another way. So-called diamond drilling. Only this option requires special drilling rigs and diamond drills. This type of concrete drilling is very expensive, and, as a rule, a team of master repairmen is hired for it. Diamond drilling is used in the case 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). Plus this method, after the drilling rig, no dust remains; it supplies water to the hole, washing away the dust and cooling the drill.
How to properly drill a concrete wall: professional advice
Quite often, during repair work, we have to drill a solid concrete base, be it holes for a hanging shelf, place for an outlet or work on installing a new ceiling. And the task is quite difficult, as it might seem at first glance. over, concrete is a very heterogeneous and extremely dense material.
Let’s figure out how to properly and the best way to drill concrete at home.
Concrete drilling stages
1. Before starting work, be sure to think if there are any communications, cables, etc. In this place, so as not to damage anything.
2. Next, check that there are no old stains and dirt in the place of drilling, otherwise clean the surface well.
3. The outer part of the concrete is usually looser than the inner layers. Therefore, before you start drilling concrete, be sure to mark and widen the point of the future hole, that is, deepen (wrap) the base of the drill entry in this place. This is to ensure that the drill does not slip or shift to the side. For the core, you can use a hammer and a large sharp nail, a self-tapping screw or a special dowel.
4. During work, keep the working tool perpendicular to the concrete base, 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. To hit the surface, enable the hit option in the drill.
6. As a drill, as well as a drill (hammer drill) it is necessary to give rest from time to time. About once every 10-15 minutes. Pause work.
7. Still such a moment, the same victorious drills do not like overheating, therefore, with a strong operating load, their tips must be periodically cooled with water.
8. For concrete work, you will also need a triangular hard steel punch and a regular hammer. Suddenly there will be rubble in the concrete. By the way, an old victory drill is also suitable as a punch. If during the drilling process there are reinforcement or stones (crushed stone), they are removed separately. The armature can be processed with ordinary tools (punch and traditional metal drill), 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 a regular drill (without impact mode) is at hand, 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, etc. Do not forget that the drill itself must be carbide.
10. Periodically remove cement chips from the working hole and they will interfere with drilling. They can be removed with a vacuum cleaner or natural brush.
11. If the drill is stuck, do not loosen it, but carefully detach the tool, then put on a larger diameter drill and release the stuck tip, being careful not to touch it.
12. It is necessary to drill holes in the concrete 1 cm longer than the length of the dowel, so that the latter will easily fit into the wall.
- To begin with, we check its serviceability, we clean the shaft from debris.
- Insert the drill until it clicks
- We bring the tool perpendicular to the wall and start drilling with a little pressure. The drill, if the process is long, is moistened from time to time with plain water so that it does not overheat.
- If the drill is stuck, then we simply take it out of the punch, insert a tool of a smaller diameter and try to use it to free the stuck object, expanding the hole.
How to properly drill a concrete wall
Each of us at least once in our life was faced with the task of hanging a shelf, painting or other object in our apartment, and since the walls of the domestic housing stock are predominantly concrete, this activity requires some skill and the necessary tools at hand.
Sometimes this procedure takes on a non-trivial nature, because the walls can have a heterogeneous structure, including iron reinforcement or crushed stone, and the usual concrete is quite durable, so today we will tell the reader about how to make a hole in a concrete wall and what is needed for this
How to properly drill a concrete wall
First of all, you need to decide on the tool with which we will drill the wall, the choice is between a drill and a perforator. If you have only one of these tools at your disposal, then the agony of choice disappears by itself, but for those who plan to rent equipment, we recall that a hammer drill is a device designed specifically for this type of work, and therefore in most cases is better suited. And the available range of dimensions of the outlet section is much larger than that of a drill.
But the drill also has its advantages, for example, when it comes to foam concrete structures, the perforator will simply crumble such a base. Remember that the drill must be a hammer drill, a hammer drill will not bring results and will most likely be damaged. Therefore, if you are wondering whether it is possible to drill a concrete wall with a drill, then know that the answer depends on the type of drill and the material of the wall itself.
How to drill a concrete wall: technology features
- 1 Drilling tool
- 2 Drills, drill bits, crowns for concrete
- 2.1: drill bits for SDS-max, SDS-plus rotary hammer
- 3 How to work with a conventional drill with a victor drill
- 4 Diamond drilling method
- 4.1: diamond drilling technology
- 5 Tips for drilling holes
Walls and ceilings of modern buildings are most often made of monolithic reinforced concrete slabs. It is well known that concrete is a material of increased strength, the handling of which requires knowledge of its processing techniques. In particular, it is necessary to drill a concrete wall with a special tool: a drill or a hammer drill.
Drills, drill bits, crowns for concrete
The choice of accessories is of great importance. The victorious tip is T-shaped. If you want to get a really durable tool, buy drills from domestic manufacturers, where the metal ratio is 9: 1, if you buy a Chinese-made drill, know that there are less hard alloys there.
Hardened drills have black tint, titanium coated drills have gold tint. Titanium is much stronger.
Drilling concrete with a drill
For a drill, choose drills with a shank in the form of a polyhedron or a cylinder, for a drill perforator with the marking SDS-plus, SDS-max. Drill bits and hammer drills are not interchangeable: they can be installed on another tool only with an adapter.
| Auger | Designed for making deep passages. Their length can be up to 1 m. |
| Gentle | Allows quick creation of small diameter holes. |
| Spiral | Used for drilling large diameter passes. |
But the fact is that with the help of drills, holes are made only up to 4 cm in diameter. To drill larger passages in concrete, use carbide-tipped concrete drill bits. Their diameter is 35-120 mm. However, the most common crowns are 68 mm in diameter. They are ideal for creating socket holes. Extension cords are commercially available that allow you to make holes deeper than 15 cm.
If a drill is used, then tungsten carbide-coated bits should be selected. The ability to work with such crowns is determined by the power of the drill. It must be over 1000 watts.
Drilling tool
The organization of work on the manufacture of holes in concrete requires a special approach, involving the selection of the appropriate tool and special drills (the usual ones are not suitable in this case). The following toolkit is best suited for these purposes:
- Drill selection perforator (hammer drill);
- Drill bit made of tungsten carbide and cobalt alloy;
- Diamond drill.
A hammer drill or hammer drill provides a rotational-translational movement of the drill (drill), which greatly facilitates drilling in concrete.
Some experts believe that in most everyday situations, you can do with a conventional drill that does not have an impact function. But in this case, for the successful completion of the work, it will be necessary to use a special metal pin, the thickness of which is approximately equal to the diameter of the planned passage. Using this pin, they fill the point of the intended drilling and periodically break the concrete as it sinks into the wall. Several small holes can be drilled with a conventional drill with a winder drill.
With an ordinary drill or screwdriver
If you do not have the tools described above, then this work can be done using a conventional electric drill or a powerful screwdriver.
To complete drilling, you will need more time than using a hammer drill, but you can do it yourself.
In this case, in addition to the drill and drill, you will also need a punch. First, a small depression is made in the place of drilling with a punch and a hammer.
After that, insert a working tool into it and start drilling. If the drill stops, break hard areas again with a punch and continue working.
Diamond drilling
This is the most effective way by which you can easily and quickly make a hole of the required diameter in a concrete wall.
To carry out 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.
It is not necessary to cool the drill during operation, 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.
As the price of such equipment is very high, then buying it for domestic use is impractical. If it is necessary to make a hole with a large diameter, you can always invite specialists for this.
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 it takes a long time to drill holes, periodically you need to wet the drill, so that it does not overheat too much.
After you have drilled to the required depth, it is necessary to pull the working tool back without turning off the punch. To clean the finished hole from dust, it is necessary to deepen and pull out the drill several times.
Work rules: tips
When working with tools, you must follow the safety rules and general recommendations:
- 1) When performing work, protect the respiratory system, dust is harmful.
- 2) If you are working outside, then you need to put fences 2.5 meters.
- 3) When working at a height of more than 1.5 meters, use a strong base of the forest or goat.
- 4) When working with a tool, the revolutions must be turned on smoothly, and in no case should it be turned off when it is in the body of the wall.
- 5) When drilling through plaster, you must carefully study the communications plan so as not to hurt anything.
- 6) It is strictly forbidden to drill through the decorative coating.
- 7) Choose the right drills for each surface.
- Wet the drill with water so that it does not overheat.
How to make a hole in a concrete wall with a drill
It is difficult to drill a concrete wall with a conventional drill. It is necessary to install the victorious drills and choose low speed. A dowel is inserted in the right place to help the tool pierce the surface. Next, drilling must be alternated with blows on the dowel.
If the drill does not have a speed control, then the hole cannot be made.
Screwdriver
The screwdriver is one of the most popular tools for repair and construction work. With it, you can twist and unscrew screws, drill wood, metal, chipboard, plywood, tiles, plywood, lightweight concrete.