3/8 (10 mm) 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. Holes are precisely located to achieve proper alignment with abrasive discs for optimum vacuum capabilities. Short nap pads for use with reattachable discs. Long nap pads for use with non-woven nylon discs. The Dynabrade 54328 6" (152 mm) Dia. Vacuum Disc Pad, Hook-Face, Short Nap is a Backing Pad which can be fitted to the tooling category and can be purchased directly from us. If you have any queries with regards to the Dynabrade 54328 6" (152 mm) Dia. Vacuum Disc Pad, Hook-Face, Short Nap please do not hesitate in contacting us on the number above, email or start a web chat. Accessory Type: Backing Pad Vacuum Type: Central, Self-Generated Consumable Shape: Disc Consumable Size: 152mm Pad Density: Medium Pad Hole Patt