6" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap 3/8 Thickness Urethane, Medium Density, 5/16-24 Male Thread. Exclusive single-piece hub design reduces pad vibration and ensures smooth performance.. Sanding Pads are perfectly weight-mated to Dynabrade tools, for achieving consistent swirl-free finishes.. High quality backup pad. Weight-mated for smooth running and minimal tool vibration.. Short nap pads for use with reattachable discs. Long nap pads for use with non-woven nylon discs. 54327 Yes -