The JBO Thread Ring Gauge (NoGo) – Metric Fine, Left Hand, 6g, M25 x 0.75 – is a precision inspection tool for external threads. It helps technicians, engineers, and quality teams quickly determine whether a threaded component falls within tolerance by testing the maximum permissible diameter.

Built from hardened steel, this NoGo gauge delivers exceptional wear resistance and long service life in demanding shop environments. Its Left-Hand design and precise M25 x 0.75 pitch (6g) ensure reliable, repeatable readings across busy production runs and routine QC checks.

• NoGo design for fast tolerance verification: Quickly confirms that the external thread diameter stays within the maximum tolerance, helping you spot out-of-spec parts at a glance and reduce inspection time.
• Hardened steel construction for lasting durability: Resists wear and deformation in high-volume environments, preserving measurement accuracy and reducing replacement costs over time.
• Left-Hand metric fine threading compatibility (M25 x 0.75, 6g): Specifically tuned for left-hand threads, ensuring precise, reliable checks for the parts you actually produce without needing multiple gauges.

With the JBO Thread Ring Gauge (NoGo), you can streamline QC workflows, reduce rework, and improve overall reliability of threaded assemblies. The durable steel construction keeps its accuracy after repeated use, while its compatibility with left-hand, metric fine threads fits smoothly into existing inspection routines, reducing tool changes and accelerating training for new operators.