The JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M13 x 1.5 is a purpose-built tool for quick, reliable verification of external thread sizes. Designed for engineers, machinists, QA teams, and workshop technicians, it streamlines inspection by providing a clear go/no-go reference for metric fine threads and exact diameter checks.

Crafted from hardened steel, this gauge stands up to daily use in busy shops, resisting wear and maintaining accurate dimensions over time. Its straightforward design supports fast checks, helping you confirm that components meet the specified M13 x 1.5 thread and 4h tolerance without guesswork.

• Metric fine Go gauge (M13 x 1.5, 4h): Quick, unambiguous pass/fail checks for external threads, helping you confirm components meet the exact diameter and pitch requirements without guesswork.
• Hardened steel construction: Built to resist wear and maintain tight tolerances under heavy use, delivering long service life in busy workshops.
• Right-hand orientation for smooth workflow: Designed to align with standard right-hand threads, enabling fast, straightforward inspections with minimal setup and training.

Using the JBO Thread Ring Gauge improves inspection efficiency, delivering repeatable, reliable results that support quality control processes and precision engineering. It helps reduce downtime, minimizes rework, and gives your team confidence that threaded components meet the exact M13 x 1.5, 4h specifications every time.