General description Diamond Drill Bit Set includes 10 different sizes of hole saws ranging from 6mm to 50mm, designed for precise and smooth drilling in various materials such as glass, ceramic, tile, and porcelain. This complete set is ideal for both DIY enthusiasts and professionals, making it perfect for tasks like renovating wine bottles or glass jars. Technical specifications Material: Sintered diamond, rubber base, plastic shell, steel Hole saw sizes: 6mm (0.23"), 8mm (0.31"), 10mm (0.39"), 12mm (0.47"), 20mm (0.78"), 25mm (0.98"), 30mm (1.18"), 35mm (1.38"), 40mm (1.57"), 50mm (1.97") Tile drill bit sizes: 6mm, 8mm, 10mm, 12mm Screwdriver length: 126mm Compatibility and accessories Includes: 1 x Drill Hole Locator 4 x Glass drill bits for tiling 10 x Hole saws 1 x Screwdriver Installation Adjustable Hole Locator with suction cup for stability Maximum opening length of the board: 8.9cm Two modes available for bearing attachment (3 or 4 bearings) Usage Suitable for drilling holes