3m - Cubitron II Hookit Clean Sanding Abrasive Disc - 6 inch - 120+ Grade - 50 Pack - 31372Revolutionary triangular shaped ceramic mineral cuts 30% faster than premium abrasives and lasts up to twice as long while delivering a finer, more uniform finish. Applications include bottom paint removal, gelcoat repair, and blister repair. Cutting edges continually exposed as it wears Hole pattern provides the best dust removal available by allowing the the vacuum to reach virtually every part of the disc Convenient Hookit attachment system