3M 37452 3M™ Hookit™ Blue Sheet Roll 37452, 80E, 2-3/4 in x 8.7 yd (70 mm x 8 m), 5/Case, 3M Model No.7100378682

3M™ Hookit™ Blue Abrasive Sheet Roll 521U is a paper-backed abrasive sheet roll with excellent performance and cut. It is available in a range of grades. The convenient sheet roll format can be sized as required. Use the 3M Hookit Blue Abrasive Sheet Roll 521U for sanding on collision repair substrates like paint, primer, metal and composites. It is a fast-cutting paper-backed sheet roll with durable E-weight paper backing for excellent cut and long lasting performance. The Hookit system features hook-and-loop attachment for easy, reusable application.