3 Review(s)

These ceramic drill bits along with large clearance hole facilitate the entrance of cooling water and escape of chips. Making the drilling process more easy and relax. Hollow Core Drill Bit Set for Glass, Ceramics, Porcelain, Cermic Tile. Colour: silver Material: metal Size: 6/8/10/12/14/16/18/20/22/25/26/28/30/40/50mm Package Contents: 1 set of * drill accessories Attention: Please keep the speed in 800-1000 per minute, and keep adding water when the diamond drill bits are working that could extend drill bit life. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.