SPI 0.8 to 100 RA micro m Surface Finish Nickel Surface Finish Comparator

SPI 0.8 to 100 RA micro m Surface Finish Nickel Surface Finish Comparator 8 Specimens 2-1/2 Inch Overall Length x 5 Inch Overall Width Includes 0.8 to 100 RA micro m Surface Finishes Includes 32 63 125 250 500 1000 2000 and 4000 AA micro Inch Surface Finishes Includes Instructions and Case