Wringing (the ability of gauge blocks to slide together and stick via molecular adhesion) is critical. The updated Bianka models undergo a proprietary lapping process that improves surface finish to Ra 0.01 µm (previously Ra 0.02 µm). This results in 30% stronger wringing force without increasing surface damage risk, ensuring more stable stack builds for indirect measurements.
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Digital image sets, sometimes accompanied by metadata for collectors. Wringing (the ability of gauge blocks to slide