Diablo premium metal cut-off discs provide great 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. Diablo thin kerf design provides for a thin, fast cut with minimal burr formation. Unlike other bonded discs on the market, this cut-off disc is a true 4 in design. Fully reinforced for use in hand-held cut-off work. Ideal for use when working in hard-to-reach areas.