JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M85 x 4 is a precision tool designed to verify external thread diameters on fasteners, fittings, and threaded components. Made from hardened steel for lasting durability, it delivers fast, repeatable Go checks that help inspectors, machinists, and quality teams confirm parts meet the metric fine thread standard, specifically M85 x 4.

• Precise Go checks for M85 x 4 external threads: Quickly determine whether a component’s external threads conform to the M85 x 4 specification with clear, repeatable go/no-go results, speeding up inspection and assembly.
• Durable hardened steel construction: Built to resist wear in busy workshops, maintaining accuracy and a long service life even under frequent use and demanding environments.
• Easy-to-use right-hand design: Optimized for right-hand threads with a secure knurled grip, enabling fast, accurate alignment and measurements—even when wearing gloves.

This go gauge helps you streamline quality control by turning threaded checks into quick, confident decisions. The combination of metric fine compatibility, rugged steel construction, and ergonomic handling reduces inspection time, minimizes rework, and supports consistent results across production runs. With reliable performance and straightforward use, the JBO Thread Ring Gauge becomes a dependable part of your calibration and assembly workflow.