P4™ dry core bit was designed for core drilling a wide range of hard materials using a standard drill. The diamond bond and turbo rim design of the P4™ was formulated to cut quickly and remain cool at the lower RPM range of a standard drill. A carbide tipped centering point is included with each P4™, this improves drilling accuracy and prevents “walking”. The P4™ is perfect for the tile trades and countertop installers. The 3/8” shank fits into many corded and cordless drill chucks, use the P4™ dry or add water to reduce dust and increase tool life.