- 【Package Includes】4 pieces dry diamond drill bits: 3pcs 1/4 inch(6mm), 1pc 5/16 inch(8mm),and 1pc 6mm Carbide Drill Bit Quick Change Shank
- 【Wax Inserted】Each dry diamond bit is embedded with wax that will melt during dry drilling to cool the cutting surface; Water can act as additional cooling to prolong the worklife of bit.
- 【Upgraded Design】High-quality diamond particles contribute to high efficiency and faster drilling speed; Design of spiral groove at the top of bit helps remove debris.
- 【Multiple Application】Dry drilling for Granite, Tile, Ceramic, Marble, Stone, Glass, Porcelain, Masonry, etc.6mm carbide drill for pre-drilling precise holes
- 【Wide Compatibility】They can be used with hand drills, angle grinders, bench drills and most other machines. Notice: If using Hammer Drill,please shut off Hammer Mode,Recommended 2000-5000RPM,MAX RPM 5000