Concrete crown for sockets - types of products and criteria

Many who have come up with repairs in city apartments, know firsthand that making a hole in a concrete slab is a very big problem. Since diamond drilling of holes in concrete is an expensive process and it is impossible to do it without the appropriate equipment, the most common option is to use concrete crowns.

But very often, inexperienced buyers acquire low-quality products, which is why people have the opinion that crowns are ineffective. In fact, if you follow the recommendations, you can make a hole under the socket in almost any wall.

The main types of products and the criteria for the correct choice

If there are works in which a large part of the success depends on the choice of the right fixtures, then the drilling of holes in concrete refers to them. Labor productivity, durability, both of the devices themselves and of the power tools depend on it.

Types of crowns

All crowns for drilling concrete under sockets and other elements are of several basic types. Consider the most common ones.

The most inexpensive, and therefore widespread - crowns with carbide nozzles.

Features of this group of products:

• Fairly affordable price. Products of this group are usually several times cheaper than analogs, so this option is very popular for personal use when you need to make only a few holes.
• The product consists of several main parts.: A cartridge that serves to fasten a fixture to a power tool (most often it is a punch), and on which the crown itself is screwed. In addition, a center drill is inserted and fixed into it, which helps to make the hole accurately. To collect all the elements, no instructions are needed, everything is very simple.

Note! When assembling, pay special attention to the position of the centering drill and its correct location in the chuck; any distortions degrade the quality of work and do not allow for making neat even holes.

• Napayki made from an alloy of high strength and durability. However, one should not forget that when they hit the armature, they often fly out, therefore this type of fixtures is unsuitable for sections with passing reinforcement.

The second option - a diamond crown under the socket in concrete.

This view also has many features:

• Many people know that cutting reinforced concrete with diamond circles is the most effective way of working, this also applies to crowns.. With their help, the work is the easiest, but not to mention the fact that this group of products has a very high cost (of course, provided that you get a quality sample). But with a large amount of work it is this option is most preferable.
• Technical diamonds present in the spray on the segments are able to cope with the most solid wallsThat is why they are used by all those who are engaged in such works professionally.

• It is also important that such devices can cut even reinforcement, so they can work even in the most difficult areas.. Although, by and large, the metal is still as far as possible to avoid.

Tip! Remember that there are diamond crowns (some also call their ring segment drills) for home use and for professional drilling machines. The second option has a very large size and cost, tens of times higher than household samples.

The third option is tungsten carbide crowns, this product group has its own characteristics, which should be mentioned:

• This option is great when you need to drill a hole through the tile.: The crown will drill ceramic tiles and concrete under it. That is, using one device, you can solve two problems at once, which saves money and time.
• It is necessary to work with this type of drilling fixtures very carefully.: spraying quickly fails with excessive effort.
• Also this option is not applicable to metal fragments. - they disable it.

What to look for when choosing

If you do the work with your own hands, then you will have to choose the crown yourself.

To do it right, you should follow a few simple guidelines:

• First, you need to decide which diameter of the crown for concrete for rosettes is necessary. It depends on what kind of installation boxes will be used, the most common option is 68 mm, but the size can vary from 60 to 80 mm. Therefore, before starting work, consult with an electrician, and if the wiring will be done on its own, then purchase the boxes in advance.

• You should also decide which type of product will be optimal. Of course, the diamond option is out of competition, but its cost is not always justified. In addition, if ceramic tiles are on the surface, then a tungsten carbide version is needed, and for simple walls there are usually enough carbide variants.
• It is very important to have documents certifying the quality of the product. If not, then the purchase is better to refuse. It is best to choose products of well-known brands that are well-established among professionals, such as the products of concerns Bosch, Makita, Alpen and many others.
• It is worth paying attention to the appearance of the product: the surface should not have scuffing and damage, the spraying should be uniform, and no blotches should be sprinkled from it.

Important notes

But not only productivity and quality of work depends on the crown, there are other important factors:

• Some concrete walls are so strong that only a professional drilling rig can cope with them. Especially often such cases are found in the houses of Soviet construction.
• Norms of SNiP prohibit drilling bearing walls, remember this in the process of work.
• It is very important to use an appropriate power tool: it is not recommended to use a drill for drilling concrete walls, a puncher is much better suited, and its power should be no less than 1500 watts. Works are carried out in a drilling mode: without blows.

Conclusion

As you can see, the result of the work directly depends on the choice of the correct crown and the use of the appropriate tool. Therefore, you should not save on fixtures, so as not to pay twice. The video in this article will tell and clearly show some features of the workflow.