3M(TM) Finesse-it(TM) Microfinishing Film Disc Roll 268L, 1-7/16 in x NH x 1000 in 7 Micron Scalloped, 4 per case Fast cutting abrasive for precise, uniform, close-tolerance finish. High-strength polyester film backing resin-bonded for durability. For metal, plastic, paint spot repair, automotive power train components, roll superfinishing. 3M268L MF PSA SCLP DR 3MIL 7MIC AO 1-7/16"XNH(36.5MMXNH)