ITEM: 0.4 to 50 RA micro m Surface Finish, Nickel, Surface Finish Comparator SPI. MANUFACTURER: SPI. BRAND: SPI. MANUFACTURER PART: 144436. 0.4 to 50 RA micro m Surface Finish, Nickel, Surface Finish Comparator 8 Specimens, 21/2 Inch Overall Length x 5 Inch Overall Width, Includes 0.4 to 50 RA micro m Surface Finishes, Includes 16, 32, 63, 125, 250, 500, 1000 and 2000 AA micro Inch Surface Finishes, Includes Instructions and Case (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Inspecting, Detecting & Testing Instruments. Testing Tools, Meters & Comparators. Surface Gages & Comparators. Surface Finish Comparators. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: SPIInspecting, Detecting & Testing InstrumentsTesting Tools, Meters & ComparatorsSurface Gages & ComparatorsSurface Finish Comparators.