Speed-Grip Discs, 6", P1200B Grit, Package of 100 No system anywhere holds better or fastens more easily than Speed-Grip. The quick-change hook and loop fastening system locks and unlocks each and every time. Provides cooler cutting action and a finer finish. For dust-free sanding, Speed-Grip, the Norton quick-change fastening system, is available in pre-punched 5 and 6 vacuum assist discs. 31551 No -