Pro Grade Calibrated Surface Roughness Standards Set With AA Microinches And Ra Micrometers For Lapping Grinding Milling ANSI B46.1 Compliance Included

Calibrated Surface Roughness Standards with AA and Ra scales
✔️ ANSI B46.1-1985, AA microinches and Ra micrometers, NIST traceable

These surface roughness standards form an international composite set used to verify and calibrate finish quality across processes like flat lapping, reaming, grinding, horizontal milling, and vertical milling. It uses markings in AA microinches and Ra micrometers, includes a wallet, instructions, and a long-form calibration report traceable to NIST, with ANSI B46.1-1985 compliance, ISO N scale, and overall size 6 in x 3 in (152 mm x 76 mm).

✅ Long-form calibration report traceable to NIST
✅ Markings in AA microinches and Ra micrometers with ISO N scale
✅ Includes wallet, instructions, and free graph correlating CLA, AA, and Ra
✅ ANSI B46.1-1985 compliant

💡 What is a surface roughness standards set used for in precision manufacturing? This handy tool helps ensure finish quality with traceable calibration.
- ANSI B46.1-1985 compliant
- NIST-traceable calibration report included
- AA microinches and Ra micrometers markings with ISO N scale
- Graph correlating CLA, AA, and Ra values

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