3M Xtract Cubitron II Film Disc 775L features precision shaped ceramic grain, an advancement in abrasive technology now available to grade 1000+ and virtually dust-free. The triangular shaped ceramic mineral is designed to slice through the substrate, rather than gouging or “plowing” like conventional abrasives, resulting in a disc that cuts up to 2x as fast and lasts up to 6x as long as conventional abrasives without compromising finish, the company states.