Cubitron Scotch-Brite Hookit Film Disc 775L, 220+, 5 in x NH, Die 600Z, 50 discs
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.