The 3M Abrasive Sanding Disc is a pack of 12 3″ discs designed for metalworking and metal fabrication industries. The discs are specifically used for edge beveling and deburring, with a grit of 50 and made from aluminum oxide abrasive material. They are suitable for use on all metals and can be attached to disc sanders. The discs are green in color, made with a resin bond type, and have a backing material of polyester cloth. With a maximum speed of 20000 rpm, these discs are ideal for efficient sanding tasks in various workshop settings.