The QEP Diamond Hole Saws for grinders are up to 50% faster and last at least 12x longer than a drill attachment. They are designed for the easy, fast and accurate cutting of porcelain, ceramic and glass tiles. These hole saws feature a special diamond grit edge for faster and smoother cuts and do not require water cooling on any sizes.

• Designed for fast and accurate cutting of porcelain, ceramic and glass tiles
• For use with grinders, ideal for cutting 1-3/8 in. holes
• Does not require water flow for cooling
• Features superior diamond grit edge for faster and smoother cuts
• Up to 12X longer life than standard hole saws, up to 50% faster than a drill
• Grinder must be used at Full Power for groove at 5° to 30°
• Recommended RPM is 8000-12000 for light pressure at 90°