Diamond Hole Saw, Adjustable Hole Saw Locator, Tile Hole Saw with 11 Diamond-Coated Drill Bits + 1 Screwdriver, Hole Saw Guide with Suction Cup Base f

[Quality] This diamond drill bit is made of high-quality steel, coated with diamond powder, and is corrosion-resistant. The thickened diamond coating on top provides excellent cutting resistance, allowing for smooth, high-precision cuts and optimal drilling results without crimping.[Adjustable Hole Saw Drilling Guide] Installation guide 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 even drilling and facilitating the drilling process. Small holes: When debris gets trapped in the hole saw, it can be removed with a screwdriver. It offers you a perfect experience.[Wide Application] This diamond hole saw can be used to remove rings from glass, marble, ceramic tiles, PVC, or other materials. When operating the diamond hole saw, continuously add water to reduce the drilling speed, decrease drilling pressure, increase water lubrication, and significantly extend the bit's lifespan.Quantity supplied: 1 set of diamond hole saws