Diamond Hole Saws feature an electroplated diamond coated cutting edge which is permanently bonded to a tough steel body which provides the necessary clearance for cutting at high speeds. These hole saws are capable of easily cutting through a wide range of materials including ceramic, glass, porcelain, marble, granite, travertine, brick, stone and other more versatile materials. When using Diamond Hole Saws, they must be used alongside water in order to keep the drill piece cool. The use of water ensures the drill piece can perform to its optimum cutting capabilities and helps prolong the life duration of the drill piece. Failing to use water can result in poorly cut holes and the drill piece burning out to quickly.