Cast Microfinish Comparator: Nine replicated cast surface finish specimens ranging from 20 to 900 microinches. The C-9 Cast MICROFINISH COMPARATOR Surface Roughness Scale is made by a dual electroforming process wherein nickel is electro-deposited to provide an exact reproduction in intricate detail
9 Specimens provided. Cast surface values for Die Casting, Investment, Shell, Centrifugal, Permanent Mold Ferrous and Non-Ferrous, Sand and Green Sand from 20 to 900 micro inches.
