APPLICATION: tile hole saw kit diamond using for dry or wet drilling, beveling, grinding, enlarging and shaping in Porcelain Ceramic Tile Marble Granite Stoneware Quartz Microcrystalline stone Artificial Stone.
SPECIAL DESIGN: This Diamond Hole Saw Kit 20MM and above drills are equipped with springs inside. Help heat dissipation and chip evacuation. Higher efficiency and better performance.
SAVE MONEY: High-quality Diamond Grain and Vacuum Brazing Technology provides much longer working life, fast and smooth drlling, durable and sturdy.
RECOMMENDED MACHINE: Triangle Shank drill bits suitable for any Hand Drill, Cordless Drill, Bench Drill. Recommended RPM: 2000-5000RPM. The faster the speed, the longer the service life.