100mm Diamond Core Drill Bit - DIDC1 In SHARE Now


Good Performance and long life

Excellent for making clean and accurate hole on glass and tile

Works better with a standard electric drill 

Cut perfect circles: Suitable for Marble, Granite, Tile Ceramic, Stone, Rebar Concrete etc.

Wide Application: 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. 


Material: Steel

Top Shank Diameter: 10mm/ 0.39inch;Tapping Diameter: 100mm/ 3.94inch


Start your hole diagonally, make a round trace and then hold drill straight

Always use lubrication (water), otherwise the diamond core drill will burn

Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.

Use Coolant. Minimum pressure.