881-R40HV 8IN, 40 GRT, 16 HOLE HOOK, 100PK Create an account and/or login to see pricing and order online. 881-R40HV Overview 16-Hole 40 Grit abrasives for the 660-M1500S or 690-3500 Clayton sanders. Hook and loop backing for long life 16 holes ensure outstanding dust collection Sold in packs of 100 sheets  Conventional Abrasives Excellent performance from conventional abrasives. These are paper-based abrasives with either PSA or Hook-and-Loop backing.  Abrasives and Backup Pads Backup Pads and Abrasives to keep your Clayton Sanders and other pneumatic tools working great. NSN's available on most items.