The JBO Thread Ring Gauge (GO) – Metric Fine is a precision inspection tool used to quickly verify external thread diameters. Specifically designed for metric fine threads, it checks M2.5 x 0.35 with right-hand orientation and 4h class to help ensure components meet exact specifications. Ideal for engineers, machinists, quality teams, and workshop technicians, this GO gauge provides fast, reliable pass/fail assessment during production and inspection.

Manufactured from hardened steel, the gauge delivers outstanding durability and wear resistance for demanding shop environments. Its simple, intuitive design makes it easy to identify properly conforming threaded components, supporting accurate quality control and efficient workflow in precision engineering.

• Fast Go/No-Go checks: Quickly confirm whether a part’s external thread matches M2.5 x 0.35 metric fine, right-hand, 4h, enabling rapid decisions without guesswork.
• Durable hardened steel construction: Built to withstand daily use in busy workshops, resisting wear to maintain consistent accuracy over time.
• Clear, repeatable results: Precision manufacturing ensures reliable readings across multiple inspections, helping you maintain traceability and quality across batches.

This JBO Thread Ring Gauge (GO) – Metric Fine helps streamline inspections, reduce rework, and improve overall thread quality across your manufacturing or repair processes. By delivering quick, trustworthy measurements, it supports tighter tolerances and more efficient production without sacrificing reliability.