SK ring gauge 55.0MM

[Features] ● Master gauge for zero-point adjustment of inner diameter measuring instruments. ● Sub-zero treatment to prevent aging and stabilization treatment.

[Applications] ●As a master for inner diameter measuring instruments.

[Specifications] - Nominal size (mm): 55.0 - Thickness (mm): 24 - Outer diameter (mm): 100 - Inner diameter tolerance: ±1.0 μm (1 to 30 or less), ±1.5 μm (over 30 50 or less), ±2.0 μm (over 50 to 100 or less), ±5.0 μm (over 100 to 200 or less) Surface roughness: within Ra0.1 μm Perpendicularity: 0.05/φ100 Parallelism: within 0.015 mm

[Specification 2] ●With inspection report ●Diameter variation: 1.0 μm (1 or more to 30 or less), 1.6 μm (over 30 to 50 or less), 2.0 μm (over 50 to 100 or less), 4.0 μm (100 over ~ 200 or less) Hardness: 653 ~ 772HV

[Material/Finish] Alloy tool steel

[Set contents/accessories]
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[Note] ●Special sizes are also available.