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Flexbar 20551 | NIST Traceable Rockwell C Test Block | HRCN 35, Round
Part Number : 20551
Listed by Flexbar at HRCN 35, block 20551 is a round Rockwell C reference with traceability to NIST. Its surface is ground, lapped and polished to a mirror finish of one micron, and a NIST traceable certificate comes with the block.
Key features
- Listed value HRCN 35, Rockwell C scale
- NIST traceable certificate furnished with each block
- Ground, lapped and polished to a one-micron mirror finish
- Round steel block, heat and cold treated
- Accuracy stated to exceed ASTM E10, E92 and E384
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