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Description: New assorted 3mm to 18mm Diamond coated hole saw / drill bits (total: 10 pcs)
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