The diamond-coated "Ceramic" drill bit is the ideal solution if you want to use a cordless screwdriver to fix plumbing fixtures or feed cables to or through tiles. With the 5-piece set, you are equipped for everything. It contains diamond-coated "Ceramic" drill bits in diameters of 5, 6, 8 and 10 mm as well as a guide with integrated sponge for proper water cooling of the diamond coating. This enables you to drill precise holes in all types of wall and floor tiles with a cutting depth of 30 mm. They can be quickly locked in the drill chuck of your cordless screwdriver using the round shank (Ø 10 mm). The base body of this drill bit is turned from solid material and is set with high-quality industrial diamonds. It therefore offers a long service life and high precision. To protect the diamond coating, the "Ceramic" core bit should only be used in the wet cutting process in combination with the included guide. You will receive the set in a high-quality 2-component plastic box in which you can transport the parts safely and store them neatly.