The JBO Thread Plug Gauge (NoGo) — Metric Fine is a precision plug gauge designed specifically for metric fine threads. It helps professionals quickly verify threaded holes meet exact size requirements, making it ideal for machinists, quality inspectors, and assembly teams who rely on consistent thread fit across parts.

Crafted for reliability, this gauge uses hardened steel and a durable finish to resist wear in demanding shop environments. With a right-hand orientation and a 6G class alongside an M65 x 2 size, it provides clear, repeatable measurements you can trust across jobs.

• Metric Fine threading: Precision you can rely on when inspecting threaded holes that use metric fine threads, delivering consistent measurements across parts.
• Durable hardened steel construction: Built to withstand daily use in busy workshops, providing long-lasting performance and reduced replacement costs.
• Right-hand, 6G, M65 x 2 fit: Tests against the exact thread specification and orientation used in production, enabling quick, confident checks and fewer reworks.

This gauge helps you validate hole threads quickly and reliably, improving workflow by reducing inspection time and uncertainty. Its robust materials and thoughtful design support steady, repeatable readings over many jobs, giving you confidence that threaded components will fit as intended and meet required standards.