[COMPATIBLE MODELS] Replacement sanding disc backing pad designed to fit Dewalt orbital sanders. Compatible with DWE6423, DWE6423K, DWE6421, DWE6421K, DWE6421-B2, DWE6421-B3, DWE6421-BR, DCW210B. Direct replacement for DWE64233 and N329079. [EASY INSTALLATION] Backing pad features 4 built-in mounting screw holes for quick and secure installation, enhancing abrasive paper grip. Screws are not included; use existing screws from your sander. [DURABLE SANDING RUBBER PADS] 5-inch orbital sander pad made of high-quality soft rubber to reduce vibration, improving control and finish quality. Allows easy switching between different grits. [EFFICIENT DUST COLLECTION] 5-inch 8-hole design optimizes dust extraction by directing debris into the dust bag or vacuum system, maintaining a cleaner work environment. [BUY WITH CONFIDENCE] High-quality construction ensures durability and performance. If you have any questions, contact customer support for assistance.