The JBO Thread Plug Gauge is a precision Go/No-Go tool designed for metric fine threads. It helps engineers, machinists, inspectors, and assemblers quickly verify that threaded holes meet tolerance so parts fit together with confidence.

This right-hand gauge targets M16 x 0.5 threads in 6G class, delivering durable, repeatable performance in busy workshops. Constructed from hardened steel, it resists wear to provide consistent checks over many uses.

• Go/No-Go design for fast, decisive checks: Quickly determine whether a threaded hole is within tolerance, reducing guesswork and speeding up inspection workflows.
• Metric fine thread compatibility: Specifically tuned for M16 x 0.5 right-hand threads in 6G class, ensuring accurate pass/fail results for mating parts.
• Rugged, hardened steel construction: Built to endure daily use with high wear resistance, preserving accuracy and extending tool life.

By providing clear acceptance criteria at a glance, this gauge helps you streamline quality control, minimize misthreads, and shorten assembly times. Its reliable performance supports consistent results across batches, making it a dependable addition to any machining, manufacturing, or workshop environment.