Roc Certified Hardness Test Block. “B” Scale.Manufactured from the highest quality steel with a special heat treat and cold treat process which insures maximum consistency and repeatability. Accuracy exceeds ASTM E10, E18, E92 and E384 standards. HRB 65
Rockwell Hardness Test Block-B Scale-HRB 65
$275.00
This test block provides a standard for calibrating equipment used in materials science experiments, supporting hands-on STEM education.
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