The JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M145 x 1.5 is a precision gauging tool designed to quickly verify the minimum size of metric fine threaded holes. Built for go/no-go inspection, this GO gauge confirms that a hole accepts the smallest mating thread when required, helping quality teams prevent undersized threads from slipping into assemblies.

Suitable for engineers, machinists, inspectors, and maintenance technicians, it delivers fast, reliable checks with minimal setup. Crafted from hardened steel, it resists wear and maintains tight tolerances through repeated use in busy workshops and production lines. The right-hand orientation and clear metric specification (M145 x 1.5, 6H) support accurate in-process inspection and consistent results across jobs.

• Precise metric fine-thread GO gauge: Quickly verify that holes meet the minimum size for M145 x 1.5 with 6H tolerance, speeding up quality checks with clear go/no-go indication.
• Hardened steel construction: Built to last, resisting wear and maintaining accurate hole size even after many insertions in demanding environments.
• User-friendly right-hand design: Optimized for standard metric right-hand threads, enabling fast, confident checks and easy identification of compliant holes.

By using the JBO GO gauge, inspection becomes faster and more reliable. It helps prevent undersized threads from slipping into assemblies, reduces rework and downtime, and supports consistent performance across tools and processes. Its durable build and precise dimensions provide confidence in measurement results, whether you’re on a production line, in a workshop, or performing field maintenance.