Use the QEP 5/16" Diamond Drill Bit Kit when installing bathroom fixtures on marble, granite, ceramic and porcelain tiles. Besides the drill bit, the kit contains a guide, adhesive pads and a water-cooling system. Ideal for cutting 1/4" holes when installing towel bars, soap dishes, shelves, cabinets and shower door frames.

• Diamond Grit edge drills through ceramic, glass, marble, porcelain and granite
• Drill guide and water delivery system included (use wet-only)
• Fits standard 1/2" or 3/8" drill chucks