Professional electroplated diamond hole drill bit designed for precision drilling in glass, ceramic, tile, and marble materials. Engineered for wet use applications with superior cutting performance.

• Electroplated diamond construction for maximum durability
• Suitable for glass, ceramic, tile, mirror, and marble materials
• Optimized for wet use applications
• Available in sizes from 4mm to 150mm diameter
• Working length up to 50mm for deep hole drilling

1. Read usage steps carefully and wear appropriate protective equipment including gloves, safety helmets, and goggles
2. Securely attach the hole drill to an angle grinder and test rotation balance before use
3. Position drill bit at 20-45 degree angle on material surface and begin drilling
4. Gradually straighten the angle grinder and use circular motions to complete the hole