Hole saw diamond grit for cutting ceramic, porcelain, marble, glass, etc. Reduced drilling speed, low drilling pressure and increased use of water lubrication will greatly extend the life of the drill bit.

• Drill clean, accurate holes in ceramic & porcelain tile, marble, glass, fiberglass, terrazzo, and fiber cement
• For use with handheld or stationary drills
• Must be used with water
• Pilot bit provides clean, slip-free starts for a perfect hole every time
• For heavy-duty use by professionals and contractors
• Go green and recycle this product