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Mitutoyo 06AHM137MEU | Master Ball | 20 mm ceramic, 130 nm sphericity, RvA certificate
Part Number : 06AHM137MEU
This master ball has a 20 mm ceramic (Al2O3) sphere of ISO 3290 grade 5, with a sphericity of 130 nm, mounted on a stainless steel base with an M8 thread. It comes with an RvA calibration certificate covering one diameter value and one roundness value, and an K601418 wrench rod of 100 mm is listed with it.
Key features
- Ball: 20 mm ceramic Al2O3, purity 99.90%, 1,900 HV
- Ball grade ISO 3290 grade 5, 130 nm
- Stainless steel base (23 mm) and shaft stem, overall length 141 mm
- Calibration: RvA certificate, 1x diameter and 1x roundness
- Mass 360 g
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