[Quality] This diamond drill is made of high quality steel, coated with diamond powder and resistant to corrosion. The thickened diamond coating on the top provides excellent cut resistance, allowing for smooth, high-precision cutting and optimal drilling results without crimping. [Adjustable hole saw drill guide] Installation with suction cup base. [Ergonomic design] The large safety hole on the drill bit allows cooling water to enter, preventing chips and other particles from being discharged into the hole , ensuring uniform drilling and facilitating the drilling process. Small holes: When debris is trapped in the hole saw. It can be removed with a screwdriver. It offers you a perfect experience. [Wide use] This diamond hole saw can be used to remove rings on glass, marble, ceramic tile, ceramic, PVC or others materials. When the diamond bit is working, add water continuously to reduce drilling speed, reduce drilling pressure, increase water lubrication, and greatly extend bit life.
