Diamond socket drills are used for electrical network installation. With the help of these drills you can make blind holes in walls of concrete, slag concrete, hydraulic concrete, and bricks. Electric boxes for sockets and switchers are installed in such holes. For more precise drilling start they are used with center bit that is fixed in the shank. The shanks for socket drills could be of two types: SDS Plus (for fixing in driller cartridge) and S10 (six-sided shank for fixing in chucking fixture of handheld drillers).