3M Roloc Disc Pad TR 88748, Hard 3 in 3/8-24 Internal, 5 per case

3M Roloc Disc Pad optimizes the performance of our Roloc discs and bristle discs by providing the right backup system and a secure attachment for grinding applications. Plus it saves time by eliminating the need to align edges of the disc with the disc pad—the screw aligns the disc, making disc changes quick and easy.