The JBO Thread Plug Gauge is a precision Go/No-Go gauge designed for metric fine threads, specifically tailored for M23 x 0.5 right-hand holes. It is ideal for engineers, machinists, inspectors, and assembly teams who need fast, reliable verification of threaded holes to ensure mating parts fit correctly.

Crafted for durability, this gauge combines hardened steel construction with a right-hand 6H tolerance to deliver long-lasting performance and consistent results across repeated inspections in busy workshops.

• Go/No-Go design for rapid validation: Quickly confirm whether a threaded hole meets spec—easy to use and reduces setup time and rework by providing a clear pass/fail result.
• Precise M23 x 0.5, right-hand sizing: Ensures testing aligns with your exact thread specification, delivering reliable comparisons across production runs.
• Hardened steel construction for long life: Built to withstand frequent use in demanding environments, maintaining accuracy and durability over time.

Used in QA, machining, and assembly workflows, this gauge speeds hole verification, minimizes guesswork, and helps ensure consistent, high-quality fits in every part pair. Its durable build and precise Go/No-Go action give you confidence to move projects forward with fewer delays and less scrap.