Flexbar Machine Corporation CYLINDRICAL GRINDING COMPARATOR 16042

GRIND AND TURN COMPARATORS Made in U.S.A. 4 MODELS - INCH AND METRIC MADE OF SOLID NICKEL Furnished in attractive vinyl case with instructions. Each model has 10 specimens: 5 each Internal Diameter (concave) and 5 each Outside Diameter (convex) Cylindrical Grinding Comparator 10 Specimens - (shows I.D. and O.D.) 5 each I.D. (concave) 4, 8, 16, 32 and 63 Ra 5 each O.D. (convex) 4, 8, 16, 32 and 63 Ra Model No. 16042, Cylindrical Grinding Comparator (in microinches)