SPI 30-695-1 Surface Comparator Set: 2 to 500 Ra micro inch Finish, 30 Specimens

SPI Nickel Surface Comparator Set: 2 to 500 Ra micro Inch Surface Finish. Includes 30 specimens per pack with 2, 4, 8, 16, 32, 63, 125, 250, and 500 micro Inch Surface Finishes. Includes Instructions and Case. For over 60 years, SPI has introduced innovative products to the metalworking and laboratory industries. SPI measuring instruments are durable, precise, and reliable — all backed by an Industry leading 2-Year warranty.

Includes 30 total count per pack electroformed solid nickel specimens: each specimen is 7/8" long x 3/8" wide Each type of surface finish such as flat lapping, reaming, grinding, horizontal milling, vertical milling, and turning is truly and consistently reproduced to give the operator or designer a realistic idea of the feel, appearance, and texture of machined components. A set of instructions is included with the set Conforms to ANSI-B46.1 and MIL-STD-10A