The Scotch-Brite™ 3M™ Roloc™ Surface Conditioning Disc is a non-woven, course grade aluminum oxide abrasive disc used for cleaning, finishing, blending or deburring applications. It includes a threaded attachment system that secures the disc to the holder. Make tough jobs easier. Scotch-Brite™ Discs can help you achieve a burr-free, paintable finish in fewer steps without damaging the base material. The non-woven, open-web, durable construction is designed to resist loading and greatly increase the life of the disc. As a result, you will not have to change it as often.