The JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M38 x 1.5 is a precision go gauge designed to verify external thread diameters against metric fine standards. It’s ideal for machinists, quality inspectors, maintenance technicians, and assembly teams who need fast, dependable thread validation on M38 x 1.5 parts.

Crafted from hardened steel, this ring gauge delivers exceptional durability and wear resistance for daily use in demanding workshop environments. Its precise dimensions and clear GO indication make inspection straightforward, helping you confirm components conform to the required standards with confidence.

• Precise GO verification for metric fine threads: Quickly confirm external threads meet the minimum engagement and dimensional requirements for M38 x 1.5, speeding up acceptance tests and reducing guesswork.
• Durable hardened steel construction: Built to endure routine handling and wear, maintaining accurate tolerances and delivering long service life in busy shops.
• Left-hand, metric fine compatibility: Specifically matched to left-hand M38 x 1.5 threads, simplifying alignment and reducing misreads during inspection.

Together, the JBO GO ring gauge provides repeatable, reliable measurements that streamline quality checks, minimize rework, and support consistent, high-quality assemblies across metalworking, manufacturing, and maintenance environments.