3 Review(s)

100% brand new and high quality Material: Metal Color: Silver Suitable for use in drill hole on glass, marble, tile or granite This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication Can be used with a standard electric drill(Not Included) Always use lubrication (water ), otherwise the diamond core drill will burn Start your hole diagonally, make a round trace and then hold drill straight Total 10 different sizes: 5mm / 6mm / 8mm / 10mm /12mm/ 14mm/ 16mm / 18mm /20mm / 22mm No Retail Package Quantity:10 Pcs