Diamond hole saw, adjustable punch positioner for ceramic tiles, supplied with 11 diamond drill bits + 1 suction cup hole saw guide, suitable for ceramic and glass.

【Quality】This diamond drill bit is made of high-quality steel with a diamond powder coating for optimal corrosion resistance. The thick diamond coating on the top surface provides excellent cutting power, allowing for clean, precise cuts and optimal drilling results without jamming. 【Adjustable Drill Guide】The drill guide uses a suction cup for secure attachment. 【Ergonomic Design】The large safety opening on the drill bit allows cooling water to enter, preventing chips and other particles from entering the hole, ensuring even drilling and simplifying the process. Small hole: If debris gets stuck in the hole saw, it can be removed with a screwdriver for optimal use. 【Versatile Use】This diamond hole saw can be used to remove fingerprints from glass, marble, tile, ceramic, PVC, and other materials. When using a diamond drill bit, regularly adding water reduces drilling speed and pressure, improves lubrication, and thus significantly extends the bit's lifespan. Quantity supplied: 1 diamond hole saw