- Most widely used diamond lapping film
- Fast cut, increased throughput
- Flat surfaces and low edge rounding
- Uniform finish
- Long abrasive life minimizes abrasive changes
3M™ Diamond Lapping Film Sheet 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.