General description Suitable for various tasks, this 6pcs Glass Drill Bit Set includes drill bits in six different sizes: 4mm, 5mm, 6mm, 8mm, 10mm, and 12mm, all featuring a 1/4 inch hex shank for easy compatibility. Each bit is marked with size markings for convenience. Technical specifications Sizes: 4mm, 5mm, 6mm, 8mm, 10mm, 12mm Shank type: 1/4 inch hex shank Material: Carbide steel Compatibility and accessories Compatible with lithium electric drills Compatible with hand drills Compatible with bench drills Suitable for glass, ceramic tiles, marble, and red brick cement walls Usage Essential for DIY enthusiasts and interior decorators, these drill bits are ideal for drilling into hard and fragile surfaces such as glass tiles and ceramic mirrors.