The JBO Thread Ring Gauge (NoGo) - Metric Coarse is a precision inspection tool designed to verify external thread diameters against standard specifications. This right-hand, NoGo gauge is calibrated for the 4h tolerance on M8 x 1.25 threads, helping you quickly determine whether a part meets the required fit and performance criteria.

Made from hardened steel, this gauge delivers durability and wear resistance for busy workshops, quality labs, and production lines. Its user-friendly design supports rapid identification of non-conforming threaded components, reducing inspection time and helping maintain consistent thread quality across assemblies.

• NoGo Metric Coarse Verification: Quickly confirms external thread diameters for M8 x 1.25 right-hand threads against the 4h NoGo limit, enabling clear pass/fail decisions without guesswork.
• Hardened Steel Construction: Built to resist wear, this gauge maintains accurate dimensions over time for reliable, long-lasting performance in demanding environments.
• Easy-to-Use QC Tool: User-friendly geometry and straightforward checks allow fast, accurate inspections, minimizing downtime and rework in daily operations.

This gauge helps accelerate quality control by delivering dependable checks that ensure every M8 x 1.25 thread will assemble as intended. The robust hardened steel body stands up to daily use, reducing replacement costs and downtime. By minimizing guesswork and rework, it supports tighter process control, consistent mating in assemblies, and confidence when validating components for production, assembly, or procurement.