The JBO Thread Plug Gauge (GO) is a precision inspection tool designed to verify internal threads in metal parts and assemblies. Built for metric fine threads, this GO gauge helps inspectors, machinists, and quality teams quickly confirm that holes meet the M68 x 2 standard and are ready for mating parts, with correct alignment for right-hand threads. Designed to the 6H internal-thread tolerance, it delivers reliable go/no-go results each time.

• Precise GO verification for M68 x 2 threads (6H): Quickly confirm that threaded holes accept the mating plug, enabling fast pass/fail checks and reducing rework in production.
• Hardened steel construction for long life: Withstand daily use in busy workshops and resist wear, delivering dependable performance through many inspection cycles.
• Right-hand metric fine threading orientation: Optimized for common right-hand threads, making setup straightforward and reducing reading errors during inspection.

Using the JBO GO plug gauge simplifies quality control by providing clear, repeatable results that help you verify hole suitability before assembly. Its durable construction supports consistent performance across shifts, while its straightforward design accelerates inspections, lowers downtime, and helps you maintain precise tolerances in critical projects.