The Magnum is a premium vacuum-brazed blade that will cut a wide variety of materials with extreme speed. This blade works extremely well on ductile and plastic pipe and may be used for limited cutting of cast iron, metal roofs, steel studs and rebar. Diamonds are vacuum brazed on both the outer rim and the sides of the blade to provide the fastest cutting of any blade we offer. This blade replaces approximately 80-100 abrasive blades. The Magnum is a great rescue blade. May be run wet or dry.