672-301J BACKUP PAD 3IN JHOOK TAPERED 1/4 STUD Create an account and/or login to see pricing and order online. 672-301J Overview Backup Pad for use with the Clayton 3" Random Orbital Sander J-Hook backing accepts Clayton DustMaster Supreme Abrasives AND conventional hook-and-loop abrasives Allows vacuum dust extraction through holes in the pad for outstanding dustless performance J-hook construction is much more durable than conventional backup pads, and has a longer service life Add a pack of 3" Protection pads to make the pad last up to 20 times longer than normal.  Backup Pads Backup pads are available in three styles: J-Hook for DustMaster Supreme Abrasives and conventional hook and loop abrasives. Hook for conventional hook and loop abrasives only. Vinyl for pressure sensitive abrasives (stick-on).  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.