Description: 10pcs Diamond Hole Saw Drill Bit Set 6mm-32mm Tile Ceramic Glass Porcelain Marble Hole Saw Cutter Specifications: Material: Steel Size: 6mm\/0.23", 8mm\/0.31", 10mm\/0.39", 12mm\/0.47", 14mm\/0.55", 16mm\/0.62", 18mm\/0.7", 22mm\/0.86",26mm\/1.02", 32mm\/1.26" Quantity: 10pcs Features: Can be used with a standard electric drill. Always use lubrication (water), otherwise the diamond core drill will burn. Materials and only needs water for lubrication. This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other. Use note: 1. Start your hole diagonally, make a round trace and then hold drill straight. 2. Always use lubrication (water), otherwise the diamond core drill will burn. Package Included: 1Set x Diamond Hole Saw (10pcs) More Details: