3 Review(s)

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. Always use lubrication (water), otherwise the diamond core drill will burn. Start your hole diagonally, make a round trace and then hold drill straight. Size: 6mm/0.236" Quantity: 10 Pcs/Set