SK ring gauge 47.1mm

[Features] ●Master gauge for adjusting the zero point of internal diameter measuring instruments. ●Sub-zero treatment and stabilization treatment have been performed to prevent deterioration over time.

[Application] ●As a master for internal diameter measuring instruments.

[Specifications] ●Nominal dimension (mm): 47.1 ●Thickness (mm): 20 ●Outer diameter (mm): 85 ●Inner diameter tolerance: ±1.0 μm (1 or more to 30 or less), ±1.5 μm (more than 30 to 50 or less), ±2.0 μm (more than 50 to 100 or less), ±5.0 μm (more than 100 to 200 or less) ●Surface roughness: Within Ra0.1 μm ●Straightness: 0.05/φ100 ●Parallelism: Within 0.015 mm

[Specification 2] ●Inspection report included ●Diameter difference: 1.0μm (1 or more to 30 or less), 1.6μm (more than 30 to 50 or less), 2.0μm (more than 50 to 100 or less), 4.0μm (more than 100 to 200 or less) ●Hardness: 653 to 772HV

[Material/Finish] Alloy tool steel

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