How to drill a hole in concrete with a drill

Difficult areas

The right way to drill a concrete wall if a drill doesn’t work? Because of the high impact energy, the more reliable tool for crushing difficult areas is the peorator. However, it may not be as handy as a hand chisel either. It’s easy and simple to crack the hardest layers of a wall with this uncomplicated tool.

Simply insert a pointed chisel into the hole and use a few moderate hammer blows. When the obstacle is passed. go back to the drill. In general, the probability of coping with difficult areas with a peorator is much higher than with a drill, but because of its large size and weight, many people prefer to use a chisel.

Its advantages are obvious:

Now you know how to “drill” through a concrete wall without a chisel, but be careful! If you hammer the chisel in too hard, it can get stuck and you will have to exert a lot of force to get it out, plus there is a chance of going deeper than the intended mark.

How to properly drill a hole in concrete

The need to attach something to the wall may arise after the purchase of a cabinet, lighting fixture or when you want to get a shelf. For walls made of wood or other material, there shouldn’t be much of a problem. If the wall is concrete, you have to deal with the questions of how to drill a hole in concrete and what tool to use so as not to spoil the vertical surface.

How to drill holes in concrete surface?

The necessity to make holes in concrete walls and ceilings occurs when laying communications, fire and engineering systems (sewerage, ventilation, gas and water supply), installing railings, installation of anchors and similar situations that require partial or complete through drilling of structures. Their preparation process is labour-intensive and dirty, the effect achieved and the drilling costs largely depend on the correct choice of drilling tool. When in doubt of their own abilities or the need to lay a large number of channels it is entrusted to professionals.

To create holes powerful equipment is used: impact and nonimpact drills, rotary drilling machine and hydraulically or electrically driven drill rigs. Their tools are drills, concrete drills and round bits with pobedite or diamond coatings. The latter are valued for minimal dust generation, the ability to drill to a depth of 3 m with a diameter within 1, the high speed of work and allowing them to perform on curvilinear surfaces.

Impact drill bits can quickly make a hole with a cross-section of up to 3 cm (with a maximum of 5 cm) in unreinforced structures. The recommended minimum power in this case is 1 kW, this is enough for drilling the hardest grades. Disadvantages include impossibility of connecting a core bit with a diameter of more than 25 cm and restrictions when working with reinforced concrete. Direct hit of the drills on the reinforcement can stop or break the torch, so it should only be used if you can be sure that there is no metal in the path of the nozzle.

Drills with power output of 250 W or more are used in gas concrete and monoliths with percussive twist drills and core bits. When choosing heads the brand and type of concrete is taken into account: for porous materials a collet chuck is enough, for monoliths with thickness within 30 cm you need a two-handed tool with SDS shank with 10 mm section, for drilling hard composites of M400 and above. SDS Max of at least 18 mm. Drilling a hole with a large diameter and depth of more than 0.5 m is difficult, involved power drills.

Best way to drill a hole in cement or masonry in 5 minutes and screw it down

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By specialized and professional equipment include drilling machines, in turn divided into models pistol type (for rapid hole creation with a diameter of up to 10 mm), one-handed machine for laying through and blind cavities within 15 and two-handed, suitable for large channel. The latter are represented by water-cooled motor drills with power from 5-8 kW, connected to the three-phase network or hydraulic drive. They allow you to drill a hole up to 1-1,5 m deep and with a diameter of 250 mm or more without any problems.

How to drill a hole in a concrete wall

During self-repair in an apartment or house there is a need to make a hole in a concrete wall. It can be non-cutting (for fastening) or through (for utilities). Let’s consider in detail how to drill a concrete wall with various tools.

For this it is best to use a peorator. This is a professional tool, so it may not be on hand. And it is expensive to buy such a tool just for repair. So you can use an ordinary household drill with an impact function.

Choice of tool

The best option for drilling concrete walls is a drill:

  • power of 600 W;
  • With a rotation of the working body up to 2500 rpm;
  • Drill diameter up to 12 mm in the quick-change chuck;
  • with the mandatory presence of reverse.

Drill bit

Concrete drilling requires a drill bit made of very hard metal. Most commonly used are carbide drills with edges of pobedite or diamond. The first option is cheaper, and the performance is not inferior to the second.

But it is necessary to consider the point that using a drill can make a hole in the wall to a depth of no more than 15 cm. For a through hole, you need a drill.

To make a hole with a drill, you need a drill with a shank diameter of 10 or 18 mm. The drill bit is shaped like a slotted shank, but it can be perfectly clamped with a drill chuck. If there is a need to drill a thick concrete wall, it is correct to use drills of different lengths.

For example, first drill a hole 15 cm deep, then replace the drill and drill to a depth of 35 cm, then to a depth of 50 cm. True, the deeper you drill into the wall, the more power the drill requires.

Checking for electric wiring

The first thing to do is to determine where to drill. In this case, the main point is not to get on the electrical wiring. According to building law, all wires are only placed vertically and horizontally. And if you have a socket in front of you, its wire runs vertically to the junction box. True, embarrassments do happen. This is when electricians decide to save cable or wire. Therefore, the possibility that the wiring is not laid properly, is present.

As you can see, the wiring is located horizontally and vertically.

In this case, it is recommended to use special devices that determine the presence of metal objects under the concrete or plaster layer. Chinese devices are inexpensive, but they work quite well.

You can use another option. To do this, a screwdriver or similar tool in the place of drilling should be unscrewed concrete or plaster. Depth. 5 cm. If you have not struck a wire, you can drill.

Drilling process

To properly make a hole, you need to follow a few simple rules. First, you need to keep the tool’s RPM to 400. Secondly, experienced craftsmen advise to periodically dip the drill into cold water. Pay attention to the fact that the drill removed from the concrete wall is very hot, so do not get burned.

Possible obstacles

In the wall bearing panels during the production process, a reinforcing framework of metal fittings with a diameter of 8-12 mm is installed. Plus, they can put crushed stone or gravel in the concrete mortar. These are all obstacles to drilling into concrete walls.

If the drill bit has encountered something solid, and the process itself has stopped, then most likely you have hit either the reinforcing frame or on rubble. What to do in this case?

Stone or metal?

First of all we must determine: under the tip of the drill metal or stone. If the depth of the hole is small, then you can visually verify it. If it is deep, then take a drill bit or a metal pin with a diameter a little less than the hole, put the tool inside and hit the free end with a hammer.

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If after a few strokes you feel that the tool has broken something and is moving deeper, it means that it was a stone. If nothing happens, and the tip of the pin is blunted, it means there is rebar underneath.

Go around the reinforcement

What to do with a stone is clear. That is, you slowly break it up and keep drilling the hole with the drill. But the armature can be drilled with an ordinary metal drill bit. You just replace the twist drill bit with a regular drill bit in the chuck, drill through the rebar, and then continue with the twist drill bit.

If you do not have a regular drill bit handy, you can shift the direction of the pobedite drill bit at an angle (down or sideways). Sometimes it works. By the way, if you use a peorator and drill, then the pebbles of rubble for these two tools is not a problem. The drill just crushes them with percussion.

The grandfather’s way

Not long ago, when pobedite drills were in great short supply, and drills with percussion functions were new, ordinary drills were used, using an unusual technology.

For this purpose, one drill was used to make a pin. Its end could be flat, like a screwdriver, or it was possible to make it tapered, like a tap. Drilling and tapping intervals were carried out. That is, first a hole was drilled, then a pin was inserted into the hole and a hammer was hammered into it. Then again drilling, then impacting. In essence, the man performed the percussive function of the peorator.

Drilling holes in concrete, simple,,,w/the right tools!

The optimum choice

And yet, the question of how to drill a concrete wall can remain completely unanswered, if a few words about diamond drills. It is the highest quality tool, although expensive compared to pobedite tools. Specialists consider them versatile, because they can drill almost any material. By the way, the drills themselves are not diamond, their cutting edge is coated with diamond.

The most important thing is that such a device can be drilled with a drill without a percussive function. Working with a diamond drill bit must be done correctly. It, like other types, must be periodically wetted in water to reduce the temperature. High speeds are also unacceptable here.

drill, hole, concrete

Preparation

Before carrying out work with a drill on the concrete wall surface, it is necessary to determine the location of electrical cables, metal pipes, laid elements of the fittings inside the monolith. For “exploration” use a metal detector. it will accurately determine the location of non-ferrous and ferrous metals. If this point is not met, the drill bit, cables or pipes can be damaged or broken. When it turns out that the area of the wall is suitable for these activities, a point is marked on the surface with a puncher, then drilling at low speeds deepening. You need to know. the upper layers of concrete are loose, they can crumble.

How to Drill Into Concrete | The Home Depot

If an abnormal sound of metal contact occurs during drilling, it means that the nozzle has encountered reinforcement. To prevent the dullness of the drill, the event is stopped.

Can you drill concrete with an electric screwdriver?

To give an answer to this question, you need to know in what material you need to drill holes, what depth and diameter. Holes with a diameter of 10 mm or more to perform, using an electric screwdriver, is problematic. But if the drill bit is thin (3-5 mm), you can drill such elements with an electric screwdriver. The rotational speed of the drill bit affects the ability to drill in hard materials. A speed of 500 rpm is suitable for screwing./The torque is also important, i.e. how much torque is applied to the screws or the drilling process./min. Equally important is the torque, namely how much force is applied to tighten the screws or the drilling process. For concrete, an electric screwdriver with a power output of 140 N/m should be chosen, using it in the working end position of the socket at maximum power.

Drilling concrete walls with a drill with your own hands

Concrete is difficult to drill because of its high strength and the presence of reinforcement. The ideal solution would be to use a torch, but buying an expensive tool for small quantities is impractical, and a drill is available in almost every home.

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To make a hole in a concrete wall no thicker than 12 cm, you can use a drill, preferably with percussion function. For other surfaces, choose a peorator.

The quality of the work performed also depends on the drill bit, an ordinary drill will not work. The following types of products must be used:

Toothed percussion type. For a hard wall varieties are used, made of durable metal alloys. SDS tails can be selected. They have one disadvantage: in contact with steel, they are quickly destroyed. Therefore, it is advisable to check for fittings in the wall the day before.

Diamond. for hammerless drilling in concrete. They are more durable. Their edges have a heterogeneous structure and notches; during manufacture, corundum or diamond grit is sprayed on the surface.

For household works, drill bits with a length of 10-12 cm are selected, while professional equipment requires larger tools. The main advantage of diamond tools is that they are not afraid of contact with reinforcement. You can find a description of the technology in the article Diamond cutting of concrete and reinforced concrete structures.

CS: GO bits with a cutting edge coated in diamond-crystal powder. They are used to make holes in walls, including exterior.

drill, hole, concrete

Most often a peorator is used for drilling in concrete. It has several advantages over an ordinary drill.

Despite these advantages, it is not always the right tool for the job. In some situations, its use is simply impractical.

Peorator is not suitable in the following cases:

  • When you need shallow holes in the wall (10-12 mm);
  • when working with foam block (otherwise the material will crumble);
  • If the required number of holes does not exceed 15 pieces.

Based on this, we can conclude that for home use is more suitable conventional drill. To buy such a tool for drilling walls, you need to consider a number of important points.

The drill must meet these requirements:

  • It should be percussive, because this type is most effective when drilling concrete walls. In a hammerless drill, the bits and chuck are too quickly out of order.
  • It is better to buy pobedite nozzles, designed for concrete work. And the tip is coated with durable alloys.

You can also choose a rotary drill. True, such a tool costs more than a conventional model. But it has extra power, which you can regulate at your own discretion.

Concrete is a very dense material with inclusions of gravel of different sizes. This is the peculiarity of drilling concrete surfaces. In addition, the wall is reinforced with rebar, which also makes drilling more difficult. Peorator, due to the high power of the motor, is used for manipulation with strong materials, but it is impossible to drill foam blocks, because they begin to crumble. It is difficult to make small hollows (less than 10 mm) with such a tool. The machine can overheat if you use it for a long time.

The peorator can easily be replaced with other tools if necessary. This is possible if the amount of work is small. Otherwise, the machines can fail. As a substitute often use screwdrivers of higher power, machines used for diamond drilling, ordinary drills or products with percussion mechanism.

If a large number of holes are to be made, the latter tools should be chosen. An ordinary machine’s chuck quickly breaks when under heavy load. Beginning repairs, you can consult with experts how to drill a concrete wall with an ordinary drill.

Can it be done

When using the tool and drills correctly, following the manufacturer’s instructions and the recommendations of professional builders, a regular drill can be used to drill holes in concrete, brick and masonry partitions. The result of manipulation should be a level hole. The working surface must remain undamaged.

Ordinary nozzles are not suitable for such actions, they must be made of high-strength materials (diamond spraying, victorite).

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