General description Premium quality diamond drill bit set featuring vacuum-brazed diamond technology for high efficiency, faster cuts, and longer life. This set is filled with cooling wax, making it suitable for dry drilling, and is ideal for a wide range of materials including glass, tile, hard ceramic tiles, porcelain, granite, marble, quartz, limestone, fiberglass, terrazzo, and masonry. Technical specifications Drill Bit Diameters: Ø6 mm, Ø8 mm, Ø10 mm, Ø12 mm Hex Shank: 6.35 mm Overall Drill Length: 66-80 mm Installation Use the supplied carbide tipped drill bit to create an initial notch. Position the diamond drill bit at an angle of approximately 45° to the starting notch and drill carefully. Once the notch is deeper, place the machine and diamond bit in a vertical position. Move the drill lightly in a circular motion to remove dust and dirt from the hole. Stop drilling and periodically cool the diamond bit and the material. Repeat the previous steps until the drilling is