The Diablo 4-1/2 in. D x 7/8 in. Aluminum Oxide Metal Cut-Off Disc is designed for use with a saw to efficiently and precisely cut through metal materials. This 1-pack of discs is made with high-quality aluminum oxide for durability and long-lasting performance. The 4-1/2 inch size makes it compatible with a variety of saws, and the 7/8 inch arbor size ensures a secure fit. Get the job done with precision and ease with these Diablo cut-off discs.