General description This diamond-coated core drill bit is designed to remove a complete circle from various materials including glass, tiles, marble, granite, and ceramics. It is easy to use, offers high quality and good performance, and is built for long life. Ideal for making clean and accurate holes, this tool is perfect for DIY enthusiasts and professionals alike. Technical specifications Diameter: 60mm Sizes available: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 35mm, 40mm, 50mm Installation Can be used with a standard electric drill (not included) Usage Always use lubrication (water) to prevent the diamond core drill from burning Start your hole diagonally for best results