Forney 71663 Resin Fibre Sanding Disc 3pk Aluminum Oxide 5in x 7/8in 80 Grit Forney 71663 Resin Fibre Sanding Discs are designed for high-performance grinding, deburring, and stock removal on metal, autobody, paint, plastics, and fiberglass. These 80 grit aluminum oxide discs feature a heavy vulcanized fiber back bonded with heat-resistant resin for extended life and a consistent medium finish. Compatible with right angle grinders, they support a maximum RPM of 12,200 for efficient material processing. Measurements: • Diameter: 5in • Arbor Hole: 7/8in • Grit: 80 • Quantity: 3 Pack #Utility