The JBO Thread Ring Gauge (GO) in Metric Fine with Right-Hand threads and 4h tolerance is a precision tool designed to quickly verify external threads on fasteners, fittings, and machined components. Ideal for engineers, machinists, quality inspectors, and maintenance professionals, this GO gauge confirms whether a part meets the M72 x 1.5 standard, helping you ensure mating accuracy and consistent performance across assemblies.

Manufactured from hardened steel, this ring gauge delivers durability and stable measurements in demanding shop environments. Its simple, intuitive design lets you quickly identify components that conform to specifications, reducing inspection time and minimizing rework in production lines.

• Exact M72 x 1.5 Metric Fine Go Gauge: Enables fast, reliable go checks to confirm major diameter and thread form meet the M72 x 1.5 standard, helping prevent mismatches and costly rework.
• Hardened Steel Construction: Built for longevity, resisting wear and maintaining accuracy through daily use in busy workshops and production floors.
• Right-Hand, 4h Tolerance Design: Specifically matched to common right-hand threads with a tight 4h class, ensuring consistent, repeatable results across multiple inspections.

With the JBO Go Gauge, you’ll streamline your inspection workflow, accelerate first-pass conformance, and reduce downtime from out-of-spec parts. Its reliable accuracy supports precise assemblies, improves overall quality control, and gives your team a dependable tool for everyday precision work.