Description
About this model
MRB-HRC-61.1: Precision Rockwell Hardness Standard
The MRB-HRC-61.1 reference block delivers the reliability required for accurate Rockwell hardness verification. Engineered from deep-stabilized, high-purity alloy tool steel, this block resists structural drift to provide long-term measurement consistency.
With a mirror-lapped, polished finish, it minimizes micro-roughness, ensuring clean indentations and precise readings. Certified at 61.1 HRC with exceptional 0.3 HR surface uniformity, this reference standard is the ideal solution for labs that demand repeatable, high-quality results in every calibration cycle.