Diablo's premium metal cut-off discs provide superior performance and increased productivity. Featuring a premium aluminum oxide blend, these discs cut through material faster than other cut-off discs and offer an extra long cutting life. Fully reinforced for use in hand-held cut-off work. Ideal for use when working in hard to reach areas. Premium Aluminum Oxide Blend, a superior quality formulation designed for fast material removal and long cutting life, For use on metal applications: steel, stainless, cast iron, sheet metal, Tool use 7-1/4" circular saw for cutting metal, For use on any corded or cordless 7 1/4" circular saw