Norton Hook and Sand Discs 5 in. x 5 Hole x 220-Grit, 25-Pack a very fine 220 grit paper that is for achieving an extra smooth finish on bare surfaces, as well as for sanding primers and sealers. Crafted from premium grade aluminum oxide abrasives, these Norton gold sanding discs are resin bonded to a high-performance paper backing to ensure durability and effectiveness. The discs are surface treated to resist clogging, preventing color transfer or surface contamination during use. Designed with a hook and loop backing, these discs allow for quick and easy changes, making your sanding tasks more efficient. They are compatible with 5" x 5 hole random orbit sanders and come in a convenient pack of 25 discs. Model Number: