SHS (Sokuhansha) Setting Ring – 30 mm, ±0.001 mm Accuracy

This SHS (Sokuhansha) 30 mm Setting Ring is a precision reference standard used for calibrating bore gauges, internal micrometers, and other internal‑measurement instruments. SHS rings are known for their tight tolerances, stable geometry, and reliable Japanese manufacturing quality.

The 30 mm size is commonly used in toolrooms, inspection labs, and machining environments for verifying measurement accuracy in the 25–40 mm bore range. The ring features a knurled outer grip for easy handling and a finely finished reference bore.

Brand Information

SHS (Sokuhansha, Japan) A respected Japanese manufacturer of metrology standards, including setting rings, plug gauges, and precision reference tools. Their products are widely used in machining, automotive, aerospace, and inspection industries.

Features and Performance

• 30 mm nominal size — Standard calibration size for small‑bore gauges.
• High‑accuracy tolerance (±0.001 mm) — Reliable reference for precision measurement.
• Knurled outer grip — Easy handling and stable placement.
• Hardened and lapped bore — Ensures long‑term dimensional stability.
• Japanese manufacturing quality — Consistent, workshop‑ready accuracy.

Included

• 1 × SHS (Sokuhansha) Setting Ring – 30 mm • No case or accessories unless shown in photos

Specifications

Keywords

SHS setting ring; Sokuhansha ring; 30 mm ring; bore gauge calibration; Japanese metrology; machinist reference tool; inspection standard; precision measuring tool.