The DUCT blade is specifically designed to cut ductile iron. This premium turbo-segmented diamond blade has side protection diamonds for help with the beveling process on pipes. The DUCT will also cut cast iron, PVC and reinforced concrete. With less sparking, the DUCT offers safety advantages over abrasive blades. It will also cut much faster and lasts as long as 100 abrasive blades. May be run wet or dry.