The JBO Thread Ring Gauge (GO) – Metric Fine, Right Hand, M13 x 1 is a precision tool for checking external thread diameters. It is designed for engineers, machinists, inspectors, and workshop staff, delivering fast, reliable verification of thread size to ensure components meet exact specifications.

Its knurled outer edge provides a secure grip for quick, repeatable use during busy quality-control checks.

• Go/No-Go quick checks: Instantly determine if a thread diameter meets spec, speeding inspections and reducing downtime.
• Rugged, wear‑resistant construction: Hardened steel with a knurled exterior stands up to repeated use and challenging environments, maintaining accuracy over time.
• Metric fine accuracy for M13 x 1, 6e right‑hand threads: Specifically matched to the metric fine standard, ensuring consistent measurements across parts and suppliers.

Used in quality control, the gauge streamlines workflow by providing fast, reliable size confirmation on threaded components during assembly, inspection, or supplier audits. The result is fewer rework cycles, improved dimensional consistency, and confidence that every tightened connection meets the required standard.