Function: Microaccurate B-grade rectangular steel gauge block set for general shop-floor calibration of micrometers, calipers and fixtures.
Blocks: 9 x 0.1001-0.1009 in, 49 x 0.101-0.149 in, 19 x 0.050-0.950 in, 4 x 1.000-4.000 in. Calibration performed at Webber Gauge, Cleveland OH, with NVLAP accreditation, ISO 17025 and NIST traceability. Uncertainty U = 6 + L microinch (k=2), not less than 7 microinch.
Features:
- Etched unique serial numbers on each block
- Rockwell C 64-65 hardened steel
- Inch system tolerance +/-50 microinch
- Wooden case
Application: Calibration of measuring tools, setting comparators and fixtures.
Specification:
| Model | RS81.B |
|---|---|
| Range | 0.1001 to 4.000 in |
| Blocks per set | 81 |
| Grade | B (Microaccurate) |
| System | Inch |
| Certificate | NVLAP accredited, NIST traceable |
| Also available | RS81.W (China calibration), RS88.MB / RS112.MB metric |