Scotch-Brite(TM) High Strength Disc, Aluminum Oxide, 8 Diameter, Very Fine Grit (Pack of 50) Durable open-web disc deburrs, denibs/defuzz, and cleans a wide variety of metals Conformable disc with wear-resistant edge provides consistent finishes and long disc life Can be stacked to expand use or cover larger surface areas Load resistance extends cut rate throughout the life of the disc Tough, non-woven material allows heavy-duty use