Everyone who decided to change the wiring at home, in the office or in another room, is faced with the need to comfortably place sockets and switches. This requires a special tool - a 68 mm crown for concrete. Her description deserves special attention.
What is a crown for?
The 68 mm crown for concrete is an integral tool in the electrician's kit. Its direct purpose is to drill holes in concrete and brick for socket boxes and switches.
Creating a hole using a fixture such as a 68 mm crown on concrete is much faster and safer than a grinder insert.
Selection tips and types of crowns
The choice of crown depends on what material the hole is supposed to be made of: what the wall is made of and how long it is necessary to use it. Such attachments are also distinguished by the attachment to the punch (trihedral, hex, SDS Max, and SDS Plus).
Basically, a 68 mm concrete crown for SDS from trusted, self-respecting manufacturers is available with a tail pin according to the standard that is suitable for modern perforators. This tail has a length of 10 mm.
It is required to take into account that crowns are divided into two types: percussion and unstressed. Impact crowns for concrete are made of three alloys (winding and tungsten carbide). The impactless crowns have diamond spraying on the cutting elements.
Concrete crowns come in different diameters - from 30 to 225 mm and above. The most popular is the 68 mm crown for concrete, which is ideal for switches and socket boxes. It is a diamond shockless crown that can be used to cut a sapling in a tile, without fear of damaging its surface.
Based on the type of base material, the following types of tools are selected:
- Pobeditovaya crown on concrete (price - about 500 p.).
- Crowns made of carbide-tungsten alloys for concrete (price - about 1000 p.).
- Diamond crown for concrete 68 mm (price - about 3000 p.)
The cost varies depending on the country of manufacture. Chinese concrete crowns can cost significantly less, while European crowns can cost more.
The simplest and cheapest option are crowns with victorious tips. Basically, they are not used for permanent work. Such nozzles tend to wear out quickly and become unusable.
Tungsten carbide alloy crowns have high cutting characteristics, but are inferior in quality and strength to the diamond crown. They are not recommended for professional use.
When a diamond crown of 68 mm for concrete is used, the work is characterized by greater reliability, namely:
- precision drilling;
- penetration depth;
- universality on any materials;
- at a minimum level of vibration and noise;
- in speed and convenience.
The best option is crowns that are coated with diamond. Such concrete crowns, regardless of manufacturer, serve longer and better in work. They are recommended to be used to perform a large amount of work.
Tips for using concrete crowns
During the repair, redevelopment of apartments, offices or construction of buildings, it becomes necessary to create additional holes for the outlet, ventilation, water supply, etc. The choice of crown depends on the diameter of the slot and the amount of work. For drilling reinforced concrete, the optimal method is drilling, in which a diamond core is installed.
Saving on quality is not recommended, especially if a crown of 68 mm for concrete is used. This tool is the most popular and in demand even in home repairs. A high-quality nozzle will be characterized by a long working resource and will last a very long time.
All work on drilling holes can be divided into five stages: preparation, drilling, marking, installation and decoration.
To do the work yourself, you will need materials such as building gypsum or plaster. From the main working tools, a perforator (or electric drill), a crown for concrete, a chisel, a hammer, a spatula should be prepared. A ruler, pencil, level and clerical knife can also be useful . A container for mixing the solution is prepared in advance.
Manufacturer's Reviews
Both experienced repairmen and home craftsmen give the greatest preference to brands such as REMS, Rothenberger, BOSH, CEDIMA, Dewalt. These brands are known for their excellent quality and long service life.
A diamond crown for concrete of 68 mm, the price of which is in the middle price segment, is produced by the South Korean company Arix and the Chinese manufacturer Super HARD. According to reviews, the quality of these products is quite acceptable.
The Chinese company Werk is known among users as the cheapest product. But his quality is desired. A little more expensive, but better quality products of domestic manufacturers DISTAR, "Adele".
Having become acquainted with such an indispensable tool for repair as a crown for concrete with a diameter of 68 mm, you can choose the most suitable type of tool for any conditions.