General description Diamond Tile Drill Bits are designed for efficient drilling in various materials including ceramic, glass, granite, marble, and quartz. This set includes six drill bits of different sizes: 5mm, 6mm, 8mm, 10mm, and 12mm, along with a pre-drilled 6mm yellow tile drill bit, which serves as an auxiliary tool for pre-drilling. The yellow drill bit should not be used for extended periods as it may become damaged. Technical specifications Sizes included: 5mm, 6mm, 8mm, 10mm, 12mm Material: Diamond-coated Special feature: Blue diamond bit contains cooling wax Installation First, mount the yellow drill bit on the drill. Hold the drill at a 45-degree angle and rotate it quickly on the surface of the material. Replace the yellow drill bit with a blue diamond bit of the appropriate size for drilling. Usage Recommended to add water while drilling to cool the bits and extend their lifespan. Suitable for use on tile, glass, granite, and marble. Compatible with drills, hand