1. Suitable for drilling hard porcelain tiles, sintered stones, granite, marble, and quartz stone.
2. Compatible with electic drill.
3. Same Quality as Other Drill Bits.
3. No water needed, significantly increases lifespan when used with cooling wax.
4. Available drill bit diameters range from 4mm to 12mm.
5. Drilling depths:65mm.
6. Diamond height of 8mm.
7. Customizable according to specific requirements.