3 inch, 7 petals, non-comp, 2nd Fine.
3M Optical Film 15 combines electrostatically oriented particles with a flat, firm film backing that delivers more
cutting energy to your work piece. Optical film provides more consistent stock removal from lens to lens. And because
the cut and finish are more consistent, you will achieve more consistent fining results, reducing reject and lowering
costs. This material can also be used as a one- step fining of CR and Hi-Index fining.