Norton 5" x 7/8" Fine Rapid Prep AO Disc 25pk - N662544691325" x 7 8" Fine Rapid Prep Surface Conditioning Disc 66254469132 For a polished final product, use Bear Tex Rapid Prep AO fine grit non woven standard back up pad disc. High loft nylon fiber on a nylon scrim backing, plus thick resin bond and grain, ensures the disc stays stiff and durable for longer. The aluminum oxide abrasive improves cut rate by 20 percent and performance by 50 percent over competitors. Patented Clean Bond resin technology offers a