Cut through the hard materials that other saws can't with this diamond hole saw by Exchange-A-Blade. The cutting edge, encrusted with diamond crystals, works on materials such as porcelain, ceramic tile, marble, fibreglass, and fibrous-cement board products like HardiePlank. Simply spray water on the surface while cutting, and get a circular hole with smooth edges. The drilling saw attaches to a wide range of stationary and handheld drills, and also includes a template for added precision. The saw offers a drilling depth of up to 1", and is also easily exchanged using Exchange-A-Blade's green exchange system.