The JBO Thread Ring Gauge (NoGo) is a precision measurement tool designed to check external metric coarse threads. It provides a quick, reliable way to confirm that threaded components meet exact standards and fit requirements.

Specifically sized for M30 x 3.5 with a 6g tolerance and right-hand thread, this gauge is ideal for quality control in manufacturing, machine shops, and maintenance environments where consistent thread accuracy matters.

• Accurate NoGo sizing for metric coarse threads (M30 x 3.5, 6g, right-hand): Designed to the NoGo limit, this ring gauge quickly verifies external thread diameters meet specification and helps catch undersized or oversized parts before assembly.
• Durable hardened steel construction: Built to withstand daily use in busy workshops, resisting wear and maintaining dimensional stability for long-term reliability.
• Fast, intuitive go/no-go inspection: Clear pass/fail indication supports rapid quality checks and minimal training, reducing downtime on the shop floor.

Using the JBO Thread Ring Gauge helps streamline QC workflows, reduce misfits and rework, and ensure consistent, reliable performance of metric coarse threaded connections across parts and assemblies. Its durability and accuracy give technicians confidence that measurements are repeatable, while its simple operation speeds up inspections and supports high-volume environments.