Specially made for us to calibrating our Ultrasonic Hardness Testers. Not for Leeb/Rebound type tester calibration. These blocks are NOT the same as standard bench tester calibration blocks that are not suitable as only 3/8" thick. These are per ASTM standard 5/8" thick specaily for a UCI tester.
Calibrated to ASTM E18, ANSI (NCSL) Z540-1, (ISO) 10012-1, ISO/IEC 17025, ISO 6508
Highest quality steel
Rockwell test block surface hand lapped and diamond polished to a mirror finish
Superior accuracy and ease of testing for the operator
Special heat treat process insures maximum consistency and repeatability
Rockwell Test Blocks are certified in a ISO/IEC 17025 accredited laboratory
In stock for immediate delivery
Free NIST traceable long form certificate with every Rockwell test block
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