High Quality Diamond Drill Bits: With super hard and extremely hard diamonds, the diamond drill bit ensures professional, clean and fast drilling. Thanks to the high quality industrial diamonds, the tile drill bit has a fast cutting speed. Waterless Drilling: Diamond tile drill bit for efficient and clean drilling. Filled with cooling wax, used for cooling and lubrication in the drill, so you can drill holes without adding water, suitable for dry drilling. Wide Applications: Perfect for easy drilling in use in drill holes on glass, marble, tiles, fiberglass jars, mable slate, granite (granite drill), ceramic (ceramic drill), hard floor tiles, clinker brick straps, stone slabs, hard tiles. Works with all electric drills and angle grinders. Stable and durable: Diamond drill bit for dry drilling, stable drilling. In addition, it has a long service life thanks to high-quality and temperature-resistant diamonds. Vacuum brazing is the most efficient and precise way to produce diamond tools. This allows us to improve the removal rate and a longer service life. Item Description: Brand new. Compatible with all drills and angle grinders. The dry diamond drill bit uses vacuum welding technology that allows the dry drill bit to be used at a higher temperature to effortlessly cut hard porcelain tiles, ceramic, marble and slate. Built-in lubricant helps cooling and extends service life, so no additional lubricant is needed. Vacuum welded diamond drill bits, dry drilling of granite and marble, masonry, concrete, tile, ceramic, glass, hard plastic, etc. Built-in lubricant to help cooling and extend service life. No additional lubricant is required. Item Specifications: Material: Metal.