Part Number 31483, 3M ID 60455091078, UPC 051131314832. Cubitron II Hookit Clean Sanding Abrasive Discs 737U combines the highest 3M technologies for automotive repair. Its long-lasting sharp triangular shaped grain and multi-hole pattern for superior dust extraction make the disc ideal for paint removal, rough body filler shaping, fine feather-edging or final prep before blending or priming.