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Mitutoyo 63ETB010 | Rockwell Hardness Reference Block | 68 HRA, Steel, 60x60x16 mm
Part Number : 63ETB010
68 HRA is the nominal level of this 60 x 60 x 16 mm steel block for Rockwell hardness testers. It is calibrated under DAkkS to ISO 6508-3 and tested with a diamond cone, using a 98.07 N (10 kgf) preliminary force followed by 588.4 N (60 kgf).
Key features
- 68 HRA block: DAkkS calibration (ISO 17025 accreditation) to ISO 6508-3
- Nominal hardness 68 HRA on a steel body, 60 x 60 x 16 mm
- 68 HRA block listed for use with HR-110MR HR-210MR HR-320MS HR-430MR HR-430MS HR-530 HR-610 HR-620
- 68 HRA: preliminary force 98.07 N (10 kgf), total force 588.4 N (60 kgf)
- Optional for the 68 HRA block: up to three calibrated test scales, ASTM E18 calibration and a lasered indentation grid
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