Norton Hook & Sand Discs 5 in. x 5 Hole x 320-Grit, 25-Pack superior performance for achieving extra smooth sanding on primer, sealer, and finishes between coats. These super fine 320 grit discs are crafted from premium grade aluminum oxide abrasives, ensuring durability and effective sanding results. The resin-bonded discs feature a high-performance paper backing that is surface treated to resist clogging, helping maintain consistent sanding quality without transferring color or contaminating surfaces. Designed with a hook and loop backing, these discs allow for quick and easy changes, making your sanding tasks more efficient. Compatible with 5" x 5 hole random orbit sanders, this pack includes 25 discs to keep your projects moving smoothly. Model Number: