9pcs Diamond Tile Drill Bits Set

[Size]9pcs/box:6pcs drill bits:Diameter 6/6/20/25/35/50mm, 1pc 10mm Finger Milling Bit, 1pc 50mm Beveling Chamfer Bit, 1pc Hex Shank Adapter.In a Useful Box to Keep them Together and Easy to Find.

[Application]EXFEIN core drill bits are used to drilling holes for porcelain ceramic tile marble granite, etc.Dry or wet use.Wet drilling with less debris for longer life.

[Fast drilling]Lightning teeth has wide chip removal slots, dust can be quickly discharged when drilling, not easy to be clogged.

[High Precision & Clean Cuts] U-Grooves design fast chip removal,high-temperature resistant process allowing for greater accuracy in drilling and englarge/beveling/shaping existing holes.

[High Durable & Efficiency]High-quality diamond grains and vacuum brazed technology provides high efficient working performance/Faster Drilling Speed/Longer Service Life.Treated by special high-temperature resistant process,can be used directly dry drilling,also with water to extend service life.

[Recommended Machine]Recommended Speed 6000RPM;Triangle Adapter for electric drill,recommended speed 2000-5000RPM;Faster the RPM, longer the bit's working life;Hammer drill,you can use SDS Adapter but have to shut down hommer moder when using these bits.