Features Exceptional Cutting Efficiency: Experience smooth and glossy cuts with rugged construction that enhances work efficiency and prevents breakage during use Advanced Labor-Saving Design: The larger cut-out reduces resistance, allowing for faster drilling and less effort, making your projects more manageable High Torsion Stability: Engineered with a robust bearing calendar to prevent slipping, ensuring stable performance and precise drilling every time Rapid Drilling Performance: Achieve perfectly round holes without nicks, maximizing your drilling effect and saving you time on every task Versatile Applicability: Ideal for a range of materials including glass, marble, ceramics, and PVC, this kit is perfect for both DIY enthusiasts and professionals Features: 1、Large Torsion: The bearing calendar is high, effectively preventing slipping and clamping more stable 2、Rugged and : Not easy to break the handle, improve work efficiency, achieve high and glossy cutting, without curling. 3、Fast: The drilling speed is fast, the hole diameter is round and there is no nick, and the maximum drilling effect is achieved. 4、Labor Saving: The design of the cut out is larger, which reduces the resistance when opening the hole. 5、Applicability: This diamond hole saw bit can be used to remove rings on glass, marble, ceramic tiles, ceramics, PVC or other materials. Specification: Item Type: Diamond Drill Bits Material: Diamond Specification: Approx. m / 0.12in, 4mm / 0.16in, 5mm / 0.2in, 6mm / 0.24in, 8mm / 0.3in, 10mm / 0.39in, 12mm / 0.47in, 18mm / 0.71in, 32mm / 1.26in, 50mm / 1.97in Package List: 10 x Hole Opener Package List 10 x Hole Opener