Scotch-Brite™ Roloc™ Surface Conditioning Disc TR, 3 in x NH A CRS, 25 per inner 100 per Case. The Scotch-Brite™ Roloc™ Surface Conditioning Disc combines our durable, non-woven disc with the efficient 3M™ Roloc™ quick-change attachment system for an effective disc that cleans, finishes, blends, and deburrs. Our non-woven fiber construction conforms well to help preserve irregular or contoured surfaces and the Roloc™ backing supports the disc for aggressive cutting. Tough non-woven disc aggressively deburrs and finishes. Conformable, non-woven disc combined with Roloc backing allows for aggressive cutting. Open-web construction resists loading and runs cool, allowing for consistent finishes. Convenient 3M™ Roloc™ attachment system offers quick and easy disc change-out for multi-step finishing processes. Max Speed 18000rpm ; Mineral Type : Aluminum Oxide ; Overall Diameter (metric) 76.2mm ; Product color : Brown ; Product Form : Disc.