The JBO Thread Ring Gauge (GO) - Metric Fine is a precision inspection tool designed to verify external thread diameters on metric fine threads. It’s ideal for engineers, inspectors, machinists, and quality teams, helping you quickly confirm that parts meet the M120 x 2 right-hand thread standard. This GO gauge makes it easier to ensure components will assemble correctly and consistently in any production or repair environment.

Built from hardened steel, the gauge delivers durable, wear-resistant performance for daily use in busy workshops and production lines. Its robust construction maintains tight tolerances over time, so you can rely on repeatable GO checks across many jobs without frequent recalibration.

• Precision-Engineered for Metric Fine GO Checks: Machined to tight tolerances for accurate Go checks on M120 x 2 right-hand threads, helping you quickly confirm conformance.
• Hardened Steel Construction: Designed for long service life with excellent wear resistance, maintaining accuracy even after extensive use.
• Right-Hand, 6g Class Compatibility: Optimized for standard right-hand threads with 6g tolerance, delivering consistent go/no-go results across parts.

This gauge streamlines quality control workflows by providing clear, repeatable results. It reduces inspection time, minimizes rework, and supports reliable manufacturing standards, giving you confidence in every measurement and every build.