The JBO Thread Ring Gauge (NoGo) – Metric Fine – Right Hand – 4h – M39 x 1.5 is a precision inspection tool designed to verify external thread diameters quickly and reliably. Built for engineers, machinists, quality control teams, and workshop professionals, it provides a clear pass/fail indication for components that must meet the M39 x 1.5 right-hand thread specification.

Crafted from hardened steel, this NoGo ring gauge delivers long-lasting durability in busy fabrication and production environments. Its simple design supports fast, consistent checks on the shop floor, QC bench, or in the lab, helping you catch non-conforming parts before assembly or field service.

• NoGo precision for Metric Fine threads: Delivers a fast go/no-go check for M39 x 1.5 right-hand threads, allowing inspectors to confirm whether the external thread diameter falls within tolerance without complex measurements.
• Rugged hardened steel construction: Withstands daily use and wear in demanding environments, preserving accuracy and reducing replacement costs over time.
• Right-hand orientation and quick setup: Designed for right-hand threads with easy alignment, simplifying setup and minimizing setup errors to speed up inspections.

Using this gauge helps streamline quality control, reduce rework, and ensure consistent results across parts and assemblies. Its durable construction and precise tolerances give you confidence in both supplier parts and in-house manufacturing, while saving inspection time and improving overall workflow efficiency.