【Application】Dry/wet drilling for Porcelain Tile Ceramic Granite Marble Artificial Stone Quartz, etc
【U-grooves Design】4pcs U-grooves helps heat dissipation and debris removal, with higher efficiency and better performance
【High Performance】High-quality Diamond Grain and Vacuum Brazing Technology provides much longer working life, fast and smooth drlling, durable and sturdy
【Recommended Machine】Corded Drill, Cordless Drill, Benchtop Drill. Use electric hand drill: Recommended speed 2000-5000RPM; Faster the RPM, longer the drill bit's working life. When use Angle Grinder, please install angle grinder drill chuck