The JBO Thread Ring Gauge (NoGo) - Metric Fine, Right Hand, 6e, M55 x 1.5 is a precision inspection tool designed to verify external thread diameters on fasteners and machined parts. It’s ideal for engineers, buyers, tradespeople, hobbyists, and quality teams, helping you confirm that components meet the required thread size and pitch before assembly. This NoGo gauge provides a straightforward pass/fail reference for critical threaded components.

Built from hardened steel for lasting durability, it resists wear and maintains accuracy through frequent use in busy workshops. The metric fine thread specification, right-hand orientation, and 6e class deliver a reliable, repeatable reference for M55 x 1.5 external threads, ensuring consistent measurements in demanding environments.

• Hardened steel construction: Designed to withstand daily inspection work, reducing wear and preserving accuracy over time.
• Metric Fine, Right Hand, 6e (M55 x 1.5): Precisely matched to the target thread size and pitch for quick, repeatable NoGo checks.
• Clear NoGo indication for fast QC: Helps identify non-conforming components at a glance, speeding inspections and minimizing guesswork.

Using this gauge, you gain a dependable, repeatable method to validate external thread dimensions, supporting consistent quality, efficient workflows, and tighter tolerance control across production and assembly processes. The durable build and precise dimensions help reduce downtime, protect tooling investments, and provide confidence to suppliers and customers alike.