Materials Compatibility:Diamond drill bit set for Wet Dry Drilling Shaping Enlaging Cutting on various materials,such as Porcelain Ceramic Tile Granite Marble Stone and so on
Sturdy: Vacuum Brazed technology provides efficient working performance, faster drilling
Recommended Machine: The drill bits are usually suitable for Angle Grinder. Recommended speed 6000RPM, maximum speed 11000RPM. If you want to use electric drill or other machine, you can use Adapter in the package. Use electric drill: Recommended speed: 2000-5000RPM; Faster the RPM, Longer the drill bit's Working
Conveniently: Aluminium portable suitcase for easy storage and portability.Reasonable product collocation meets most work demands