3M 661X lapping film disc uses diamond as the abrasive material and has a diameter of 4 in. The abrasiveness of lapping film disc products is graded on the Micron scale; with the 69721 lapping film disc having a grade of 9 Micron.
| R. S. Hughes Company, Inc. | |
|---|---|
| Product Category | Abrasive Discs |
| Product Number | 051111-69721 |
| Product Name | 3M 661X Diamond Lapping Film Disc - 9 Micron Grade - 4 in Diameter - 69721 |
| Disc / Backing Type | Film |
