Dry Diamond Drill Bit Set - Diamond Tipped Hole Saw Bit for Porcelain Tile Ceramic Marble Granite Stone,Diamond Core Drill Bit Kit Hex Shank Fixed on Drills,No.K1(5pcs 6mm)
【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