Drilling reinforced concrete or how to drill reinforcement in concrete

The most suitable way

You must decide what is the best way to drill the concrete walls. A conventional drill is often used. It is convenient if it is two-handed, which will facilitate the process, because the master will need to make a lot of effort.

If large-scale work is planned in the apartment, then you can drill the wall using a puncher. To make holes of impressive diameter, you should take a motor-drill. Its power should start from 5 kW. There are no such household models, therefore, such a device will not work through a single-phase network.

Perforator

The efficiency of this tool is quite high thanks to the chiseling option, but this equipment is more expensive than a hammer drill. When thinking about how to drill a concrete wall, it is recommended to consider a hammer drill, which uses the principle of rotation and reciprocating movements of the working part, which speeds up the task. It is better not to drill aerated concrete like this, because it completely collapses under a similar effect due to its fragility.

When the surface of regular concrete has a plaster finish, care must be taken when making holes so that the cladding does not crumble. In order to drill holes in concrete, in addition to the tool, you need to use special drills with a diameter of 4 to 8 cm. In order to eliminate unnecessary waste, you need to select the drill diameter according to the corresponding dowel parameter.

Household drill VS screwdriver

Thinking about the question of how to drill a concrete wall in an apartment, you can choose a drill. The result and the safety of the equipment depend on how correctly the drill will be chosen. Consumables with triangular tips are recommended. Better if they are made of carbide metal. The drill may get stuck and no longer advance. In this case, you need to temporarily work with a punch.

When thinking about how to drill concrete with a screwdriver, you should take care not to damage the tool. A more powerful technique may be the solution. But when the right equipment is not available, you can try to carry out the work with the tool that is at hand. In addition to it, a hammer and a punch are used.

The drill must be designed for metal work. But you should be prepared for the fact that after such manipulations it will no longer be suitable. When it is necessary to drill concrete without a hammer drill and only using a screwdriver, it is good if the equipment has an impact function. In addition to the model, you need to use a tooling with a carbide working part for bricks.

Diamond drilling

The most effective way to drill holes in a concrete wall is through diamond drilling. The peculiarity of these works is that you can move even at an angle. Immediately, you can start installing socket boxes or other devices. Very little dust is generated. The main disadvantage of such drilling is the sometimes prohibitive price of equipment and the impressive cost of the work itself.

General Provisions

Let's start by looking at 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 properties of the finished product.Particularly critical for conventional drills is crushed stone, which instantly blunts their cutting edges.

Concrete is even used to create bomb shelters.

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.

Photos of shelves screwed to the wall

Finish with plasterboard.

The metal frame under the gypsum board is attached to concrete

Implementation of electrical wiring, installation of new sockets and switches. At the same time, for laying the wire, reinforced concrete is also cut with diamond circles.

Creating a cable groove

Plumbing connection.

Diamond drilling of holes in concrete for plumbing

What do you need to know before starting work?

Before starting work, you need to know 2 things: how to drill, and how to drill a hole so as not to injure yourself or others. We will talk about safety in more detail below, but now we will dwell on the tool. There are many options. It all depends on what your walls are made of. If these are walls no more than 30 cm thick, then an ordinary drill or perforator is enough for the eyes. And if a hole needs to be punched on an internal non-bearing wall (for example, between a bathroom and a kitchen), then you can do without it.

If the walls are thicker than 30 cm and are made of concrete monolith or silicate bricks, then a more serious tool is needed. For this purpose, a 1 kW perforator and a set of diamond or victorious nozzles are quite suitable. It will be a long, dreary and dirty business, but quite feasible. Well, if everything is completely sad and you need to drill very hard concrete or reinforced concrete, then you need a drilling rig called a motor drill. It has a power of 5-8 kW and this concrete drilling machine punches everything.

Important: But there is a nuance, it cannot be connected to a household one or two-phase network, and if you try, the wiring will not stand up and melt. Well, or immediately knock out the plugs

In everyday life, a motor-drill is not used. Such a noble instrument requires a 380 volt network. However, at industrial facilities (where it is most often used), such sockets are available in abundance, so operation will not be difficult.

Drill selection

The type of material and holes determines which drill to drill into the concrete wall. The correct choice will increase the quality, accuracy of the result and the integrity of the nozzle. The assortment of shops has special drills for various types of materials: wood, concrete, metal. The features of concrete drills are reduced to the triangular shape of the tip and the application of a carbide compound to the tip. A conventional drill with a victorious drill manages to grind concrete without tearing the material.

If at the stage of drilling concrete with a drill, the process stalled, holes are drilled with a hammer drill or the impact mode is turned on. The only drawback of the rotary hammer is large holes, with a diameter of 13 mm. It is easy to break through tight areas with a mechanical punch with a hammer. The area should be pierced until the material softens. Then continue to drill the hole.

To drill several holes in concrete, special solders are used on the nozzle:

• victorious tip;
• universal drills, but they should be regularly cooled;
• Diamond drill bits for concrete are a relatively expensive material, but durable.

During drilling, make sure that there is no abnormal sound of touching metal

If you hit the armature in the wall, it is important to complete the procedure while the nozzle is still sharp.

Choosing a drill bit for a drill

You can properly drill concrete with reinforcement in 3 stages:

• Reach the layer with the metal with a victorious tip.
• Install a drill for metal - the reinforcement is soft and should be easily drilled.
• Continue working with a concrete drill.

An overview of popular brands of tools for drilling holes in concrete

Drills used for concrete work are produced by foreign and domestic manufacturers.The cost of the tool depends on the brand awareness.

How to choose the right drill bit for concrete?

Good and durable tools are produced by foreign and Russian manufacturers. The best drills for concrete are presented in the table:

Manufacturer
Features of the tools

Makita

High quality, durable and wear-resistant drills are carbide-tipped, retaining their properties even under prolonged loads, which are accompanied by the release of heat.
Each drill is sandblasted and coated with titanium nitride for increased wear resistance.
They are distinguished by high elasticity, they are resistant to bending and shock loads.
The special sharpening of the brazing makes it easier to plunge the drill into concrete, and the spiral recess removes construction dust from the hole.

Rennbohr

For the manufacture of the drill, high quality metal is used, and a special treatment protects the product from damage by corrosion. Has high strength and wear resistance, reliable protection against deformation. Retains its original shape with a long service life.

Metabo

High quality, hard soldered, robust concrete drills. They have special heat resistance, very durable, and have special grooves for quick removal of drilling waste.

Stayer

It is usually produced in a set of eight drills, of different diameters from 3 to 10 mm, packed in a cardboard box. High quality tool steel is used for manufacturing, and special treatment protects against corrosion. Has high strength and wear resistance. Does not undergo deformation with frequent and long periods of work. U-shaped spiral on the tools helps to efficiently evacuate dust when drilling a hole. The cylindrical shank securely secures the drill in the chuck of the equipment.

Bosch

Instruments with a four-helix shape. This significantly reduces the time and effort required to remove concrete residues from the hole.

Bison

Feature of the tool:
The use of VK8 carbide insert significantly increases the drilling speed and increases the wear resistance of the drill;
The presence of a U-shaped spiral accelerates the removal of unnecessary material and reduces the heating of the tool;
High class of cleanliness of cutting edges;
Sharpening angle - 130 °;
Hexagonal shank, which serves as a reliable fastening of the drill in the chuck, ensuring safe and quality work.

Interskol

The presence of a victorious tip allows drilling in concrete and other building materials. The best option is to work in electric percussion drills.

Anchor

They have an optimal ratio of price and quality, long service life.
Products are made in China. Equipped with durable carbide inserts that will not break even if the drill hits the steel reinforcement when drilling concrete

However, the reinforcement cannot be drilled with this drill.
But when purchasing such a tool, you need to pay attention to the soldering of the carbide plates - they must be even.

Uragan

Used for rotary hammer drilling.
Peculiarities:
Made of tool alloy steel;
The milled spiral is U-shaped;
The shank is cylindrical.

Drill errors

Some mistakes when using the drill can cause poor work performance, tool breakage and injury. When drilling, do not hold the tool by the chuck. Sliding the hand will damage it with the drill. You only need to hold the device by the body and the special handle.

Work should only be done with tight gloves. The fabric options can easily get caught in the chuck and twist during rotation, resulting in injury. It is not recommended to press down on the drill too hard when working. In this case, there is a high probability of loss of coordination and falling, as well as breakage of the drill.It is unacceptable for a person's hand to be on the back of the concrete surface, because the drill bit can go through and cause serious injury.