High hardness emery through so
lidification treatment extends service life. Adopt core drill bit to fix the drill position, make work easier.
Marble hole saw adopts triangular shank, it’s anti-skid and easy for installation.
Use for drilling holes on Marble, Granite, tile, Vitrified brick and Ceramic
Please add water for coolant and drill slowly to avoid diamond carbide, affect the service .This bit can be used with a standard electric drill.