3M™ Cubitron™ II Hookit™ Clean Sanding Abrasive Disc 737U is a high quality automotive abrasive intended for autobody technicians that features a triangular shaped ceramic grain that helps deliver a fine, uniform finish. Its long-lasting grain and multi-hole pattern offers great dust extraction, making the disc ideal for paint removal, rough body filler shaping, fine featheredging or final prep before blending or priming.