SPI 0.1 to 3.2 RA micro m Surface Finish Nickel Surface Finish Comparator

SPI 0.1 to 3.2 RA micro m Surface Finish Nickel Surface Finish Comparator 6 Specimens 2-1/2 Inch Overall Length x 5 Inch Overall Width Includes 0.1 to 3.2 RA micro m Surface Finishes Includes 4 8 16 32 63 and 125 AA micro Inch Surface Finishes Includes Instructions and Case