SPI Micro Surface Finish Comparator Plates, Vertical Grinding - 14-449-3
Material: Solid Electroformed Nickel
Features:
- Molded into metal frames
- Lightweight (2.5 oz) in fitted wallets
- Fits right into pocket - 2-1/16" L x 5" W overall size
- Individual specimens: 5/8" L x 1" W
- Used by Q,C. inspectors, line supervisors, machinists, draftsmen, designers, etc.
- Wallets contain durable instruction cards allowing user to assess roughness by sight and touch
- Plates are marked in AA (micro inches), Ra (μm) and Rz as well as "N" numbers
- All plates conform to SAE and MIL Specs. Manufactured to ANSI-B-46.1-1978. Military Standard 45662.
Specifications:
| Item # | Machining Method | No. of Specimens | Ra μm | Measuring Range Aaμ" | N# |
| 14-449-3 | Vertical Grinding | 6 | 0.2 - 6.3 | 8, 13, 62, 63, 125, 250 | 4-9 |
Micro Surface Finish Comparator Plates - Vertical Grinding
