Spec

• material : Alloy tool carbon steel , Circularity (μm) : 0.5 , Cylindricity (μm) : 0.5 , inner diameter Tolerance (μm) : ± 1.0 , Hardness (HV) : 653 to 772
• The ring gauge is used as a master gauge for hole test, cylinder gauge, inner micrometer, dial caliper, inner diameter meter, inner dial comparator, etc., for 0 point adjustment.
• Body Mass: 80 g
• Knurling available
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