3M Diamond Lapping Film 668X, 3 Micron PSA Disc, 10 in x NH Die# 1000C, 10 per inner 100 per case

3M™ Diamond Lapping Film 668X is a PSA version of 661X product. Precisely graded diamond particles coated on a polyester film. Provides a consistent, repeatable finish on extremely hard materials. Available in many grades between 0.10 and 30.0 micron.