Our Cubitron II Hookit clean sanding sheet rolls 737U combines the highest 3M technology for automotive repair. Its long-lasting triangular shaped grain and multi-hole pattern for superior dust extraction make it ideal for paint removal, rough body filler shaping, fine feather-edging or final prep before blending or priming. Our Hookit system makes for quick change outs of abrasive sheets. Our 3M Cubitron II Hookit file sheet 737U was developed for superior cut and long life during key stages in auto body repair. Its long-lasting triangular shaped grain and multi-hole pattern for superior dust extraction make the sheet ideal for paint removal, rough body filler shaping, fine feather edging or final prep before blending or priming. Our Hookit system makes for quick change outs of abrasive sheets. This abrasive is ideal for feather edging, as a final sanding step before priming or during prep before blending.