General description This product is specially designed for perforating hard materials, particularly tiles and floor tiles made of marble, ceramic, and glass mirror. It is not suitable for wood. The drill bits are made of cemented carbide using vacuum brazing diamond technology, ensuring durability and efficiency. Technical specifications Bore Size: 6mm Shank Type: Hex Material: Diamond, Alloy Color: Black Quantity: 5 pieces Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible with hand drills, angle grinders, and bench drills Each drill is individually packaged to prevent wear before use Installation Wet and dry use; water can cool the drill bit and prolong its service life Usage Drilling is smooth; depth marks are useful for precise projects Ensure to take safety measures when using to avoid injury Other information