When preparing for renovations in the house, you need to be prepared for the fact that you will have to drill the walls. For example, to fix a profile for drywall sheets. At this stage, there are usually some difficulties, since in many houses the walls are made of concrete. In addition to its high strength, the material can be combined with reinforcement, which makes the work doubly difficult. To drill concrete wall with an ordinary drill, you need to familiarize yourself with all the nuances of the workflow in advance.
Drilling load-bearing walls and concrete partitions is not an easy task. To complete the intended work quickly and efficiently, you need to know some secrets and tricks... And also it does not hurt to listen to the opinion experienced craftsmen who advise:
Most often, a perforator is used for drilling concrete. It has several advantages over a conventional drill.
These include:
Despite the listed advantages, such a tool is not always suitable for work. In some situations, its use is simply impractical.
A punch will not work in the following cases:
Based on this, we can conclude that for home use a conventional drill is more suitable. To purchase such a tool for drilling walls, you need to consider a number of important points.
The drill must meet the following requirements:
You can also choose a hammer drill. True, such a tool is more expensive than a conventional model. But on the other hand, it has increased power, which can be adjusted at your discretion.
To be able to drill a concrete wall with a drill, you must first select the appropriate nozzles. They must match the design exactly.
The following types are suitable for work:
Before using any attachments, it is necessary to check the wall for cables and wires, as well as fittings (if there is a device for determining the metal). This will help protect the wall from major damage, and the tool from breakage.
First, you need to prepare a drill, attachments and other related items. Then, in the process of work, you will not have to be distracted and waste time looking for the right things.
Drilling is often necessary in cases where it is required:
In this case, the concrete wall (if drilled correctly) should remain without severe damage and large chips.
When working with a drill with a victorious bit, sometimes you need to use a metal punch. It is selected in accordance with the size of the hole. This tool enables the drill to not jam when the drill is buried. To do this, the punch is driven into concrete and hammered into pieces in order to split a solid obstacle into pieces. This process can take quite a long time, so it is better to use a diamond core bit. In addition, a drill with such a nozzle will never get stuck in concrete.
Drilling sequence:
Using such simple methods, you can drill a concrete wall without a hammer drill.
Sometimes there are times when the drill gets stuck in the wall. It is not advisable to use force in this case, otherwise it will break off, and the edge of the nozzle will remain in the concrete. To free the drill, you first need to disconnect it from the drill, then put on a crown of a smaller diameter and get out the stuck part.
To perform drilling on your own and at the same time to avoid various injuries and unpleasant incidents, you need to follow safety precautions and follow the recommendations of specialists.
Concrete is a durable and reliable material. Many, if not most, buildings are constructed from monolithic or precast concrete. As a rule, holes for laying utility lines, pipelines, as well as recesses for installing electrical and low-current fittings are provided during the molding process. concrete structures... But their location often does not suit the owner of the premises, and they have to drill holes in new points. We will try to figure out how best to do this.
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 the power tool can be of different power and functionality, there are also many attachments for it. Therefore, you should define goals and objectives, and then decide what tool you might need. So:
The advantage of a hammer drill over a drill, even with an impact function, is not only more power and endurance. This tool uses not only drills of various sizes and qualities as a working bit, but also drill bits. This is the main device than you can drill a hole in concrete for a pipe.
Professional installers, punching large-diameter holes in concrete, use special units, which include:
Such equipment allows you to make a hole or recess in a concrete wall with a diameter of up to 40 cm.
When you need to make only a few holes for the construction dowel, and there is no perforator at hand, then using a conventional drill with a victorious drill is quite realistic. Also, this option is best suited if the work surface is concrete, but made of cellular material. The puncher will destroy it. But when working with a victorious drill, remember that it is short-lived and requires periodic replacement. In addition, such a drill can be "drilled" in concrete. Then he needs to be helped by hand with a punch and a hammer.
Drilling a concrete wall with an impact drill equipped with a diamond drill is much more effective. Diamond drills are slightly more expensive than victorious ones, but they also last longer. And further important point... In contrast to the victorious drill, the 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 purchase drills as a set, which includes drills of various diameters. It is more profitable than buying them one by one.
When a hole with a diameter of 35 to 120 mm is drilled in the wall, diamond bits are used as a cutting device. They are carbide-tipped steel rings on a diamond-coated work area. For domestic purposes, crowns with a diameter of 6.8 cm are usually used; holes of this diameter are needed to install electrical outlets and switches.
Hole punching work, like any other, requires preparation. In addition to tools and accessories, you should stock up on water to cool drills and crowns. Before drilling concrete with a drill or hammer drill, inspect the wall for:
The search is carried out with a metal detector, identify the identified communications along their entire length. It is better to turn off the electrical wiring on the work surface. Further:
The most difficult obstacle that has to be overcome when drilling a concrete wall is the reinforcement cage. The diamond bit cuts steel rods of small diameter on its own. When drilling with a hammer drill, metal drills should be used to counter the reinforcement.
Wear protective goggles and a respirator. It is convenient to vacuum the resulting dust. After every 15 minutes of drilling, give the tool a break for about the same amount of time. To continue working, moisten the drill with water.
Holes in concrete are necessary for conducting, installing communications. The works are distinguished by an abundance of dust, noise, high labor costs, and require high-quality power tools. To drill a hole in this material, it should be borne in mind that each hole in the structural frame of the building reduces its strength, is fraught with damage to the inside engineering systems(mainly electrical wiring, ventilation ducts), traumatic.
Through holes with poor tool quality cause shedding of adjacent wall sections at the exit of the drill / bit from their back side... Additional finishing is required, the terms of work are increasing.
The structural frame of a building made of reinforced concrete is a durable non-uniform material. Inside it is metal reinforcement, gravel or crushed stone of various fractions. Therefore, drilling a hole without observing safety standards means exposing yourself and those around you to the risk of injury. Experts recommend compliance with the following requirements when drilling / drilling reinforced concrete structures:
To drill a hole in concrete, it is necessary to change the speed of the drill, hammer drill, special diamond machine smoothly, use only a two-handed tool. The presence of plaster dramatically increases the risk of destruction of internal communications. Therefore, before you drill a hole in supporting structure buildings, you need to make sure they are absent.
Drilling with a hammer drill in percussion mode is allowed only when a drill or drill is used as a working body. If a crown is immersed in concrete, no impact rotation is applied. The tool is able to drill a hole, cut high-quality internal reinforcement, stones.
Unlike a conventional drill, which destroys crushed stone inclusions by impact, it is not able to drill through the reinforcement. To drill a solid wall, you need to study the location of the seams. It is in them that internal wiring is often hidden. power cable, gas, sewer pipes.
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In the process of construction, finishing of buildings, there is a need to manufacture blind or through holes of different diameters. Blind holes are created for fasteners, their diameter is limited to 2-16 mm. Wherein important factor is the compliance with the declared diameter. Otherwise, in the broken holes, plastic dowels for self-tapping screws and nails will loosen over time, reducing the fixing strength of wall cabinets, curtains, pipelines, and decorative elements.
For drilling blind holes of large diameter or through penetration of reinforced concrete walls, crowns are used to enter communications. They represent a cylinder, one side of which is attached with a shank to the chuck of a drill, perforator, the second has victory or diamond bits welded to it. A winder drill is installed in the middle of the structure to provide direction.
Drilling with a drill or drill leads to the destruction of the entire volume of concrete at the point of contact of the tool with construction material... If there is reinforcement inside the reinforced concrete structure, it is impossible to pass it with a drill, the hole is moved to the side.
Drilling holes in concrete with a crown differs from the previous method:
Therefore, after reaching required depth blind hole, the inner concrete cylinder remains connected to the wall by the rear end. To remove it from the hole, destructive methods are used: a chisel with a hammer or a perforator. During through-drilling, concrete cylinders are removed from the tool by light blows with a mallet on the body
Drilling holes in concrete is done with the following tools:
In the marking of the impact drill, the caliber is indicated, not the diameter. This is the distance between the protruding edges of the solder / insert. Holes are drilled with this tool in the following modes:
Even the presence of a red marking on the tip of this instrument does not guarantee that the tip material will match the metal declared by the manufacturer. Cheap substandard at the first use adds up to an incomprehensible configuration, becomes unsuitable for work.
Zirconium, tungsten burs are suitable for the following operating modes:
The length of the drill can reach 1 m, a small amount of dust when working with this tool allows you not to take furniture out of the room. The concrete to be destroyed "flows" from the hole in a trickle along the spiral channels, collects on a lined film, paper.
Professionals make blind holes for large-diameter socket boxes in a few seconds. Home master, who does not have regular practice of working with such a tool, most often runs the risk of damaging the crown at the slightest distortion. Working modes when using crowns are 2,000-3,000 revolutions for any diameter. The advantage of the crown is the high-quality cutting of reinforcement of any diameter, granite, basalt crushed stone inside the concrete at high speeds cutting.
The latest modifications of the crowns are operated at 600-1200 revolutions; when in contact with the reinforcement, the teeth crumble instantly. Therefore, before drilling, the walls are carefully examined with a special tool for the presence of an armored belt.
A perforator is intended for drilling concrete, but in its absence, in many cases, a hand-held electric drill will cope with the work. You can achieve success if you choose the right drill or crown. To figure out how to drill a concrete wall with an ordinary drill, you need to know a clear algorithm of actions, take into account a number important nuances drilling.
It is reasonable to start drilling concrete if the electric drill is equipped with a hammer function. Using a drill with a hammerless tool is pointless. The drill will simply overheat and the motor will burn out. Can be drilled with a non-impact tool big hole diamond core bit if the power of the electric motor allows.
For simple drilling percussion method of small holes will need an additional tool:
Concrete drill bits have one thing weakness... On contact with the reinforcement, the solder breaks out. If the immersion of the drill into the concrete has stopped, and a characteristic whistle has appeared, the hole is tapped with a breakdown. In the presence of reinforcement, shift the drilling site to the side.
When it is required to cut a large hole for the socket with a drill, a crown is used instead of a drill. When choosing a nozzle, look at the shank. Its shape must be suitable for clamping in the chuck. The drill will work with either a Hex or SDS shank.
Concrete drilling is carried out with three types of bits:
For drills, crowns made of carbide materials are sold, where instead of soldering, there is a spraying of tungsten carbide chips. The nozzle can be used to accurately drill a tiled wall. It is reasonable to use crowns if the power of the drill exceeds 1 kW.
The hammer drilling process requires maximum effort. It will take more time than when working with a hammer drill due to the lower power of the tool. Drills periodically give time to rest. The whole procedure for making a hole with a drill consists of the following steps:
Actions continue until the desired hole depth is reached.
In order for concrete drilling to be successful, a number of important nuances are taken into account:
If the drill is stuck in concrete, do not try to remove it with hammer blows or loosening with pliers. The shank will break off from such actions, and the screw part will remain inside the wall. It will be possible to remove the stuck element only if holes are drilled around it with a small diameter drill.
Sometimes when doing finishing works it becomes necessary to make holes in the wall, for example, to fix a metal profile when installing drywall. If the wall is concrete, then this procedure can cause certain difficulties, since this material has high strength, has an inhomogeneous structure and contains metal reinforcement. Next, we will consider in what ways you can solve this problem.
Due to the nature of concrete, you will need a special tool to drill it.:
It must be said that it is possible to cope with the task at hand with a tool without a strike function. Below we will take a closer look at how to drill a concrete wall with a drill.
The procedure for drilling a wall using a punch and a special drill is quite simple:
This completes the procedure.
Advice!
The hammer drill can be used not only for drilling hard materials.
There are special attachments that turn this instrument into a mixer.
Thanks to them, the drill - mixer for concrete does an excellent job of stirring the mortar.
Many home craftsmen doubt whether it is possible to drill concrete with a drill? Of course, this procedure will take much longer than when working with a hammer drill, however, it is quite possible to make a hole.
To perform this operation, you will need a special punch. This tool is a bar with a pointed, hard end. It is used to break the surface in the drilling area.
The instructions for doing this work are as follows:
Advice!
Often there is a need to cut concrete, in which case a grinder is used.
However, it should be borne in mind that cutting of reinforced concrete with diamond wheels is performed.
As a result, although an ordinary drill for concrete is not suitable, in the absence of a perforator, it can also be used to drill a reinforced concrete wall.
In the photo - working with a punch
Advice!
The drill can be used not only for making holes, but also for some other purposes.
For example, on our portal you can find out how to make a vibrator for concrete with your own hands from a drill.
This technology implies the use of special equipment, which is a set of the following elements:
With this design, water is supplied directly to the drill to cool the tool. Therefore, there is no need to interrupt the process. In addition, water washes away dust, so that it does not have time to get into the surrounding space. Often, such an installation includes a water vacuum cleaner, which allows you to remove the mixture of water and dust from the surface.
Of course, it makes sense to use diamond drilling of holes in concrete only for industrial purposes, where it is necessary to make a large number of holes, especially of large diameter. For domestic purposes, the equipment is unlikely to come in handy.
In addition, the price of the kit, like any other professional tool, is quite high. Therefore, if it is necessary, for example, to fix a shelf on the wall, it is more expedient to use a puncher. (See also the article.)
With a reasonable approach, it will not be difficult to make a hole in concrete. The most important thing is to use the right equipment for this and follow a specific procedure. In addition, of course, safety precautions must be followed so that the work does not end in injury.
From the video in this article, you can find out Additional information on this topic.
