The JBO Thread Plug Gauge is a precision tool for inspecting metric fine threads. Specifically designed for M9 x 0.35 right‑hand threads with 6H tolerance, it provides fast, reliable Go/No-Go checks to confirm threaded holes meet spec before assembly.

The gauge is crafted from hardened steel, delivering long‑lasting performance with excellent wear resistance. Its durable construction makes it suitable for busy workshops, QA labs, and manufacturing floors where consistent accuracy matters.

• Go/No-Go quick verification: Instantly confirm whether a hole meets the M9 x 0.35 6H tolerance with a simple insert/check, reducing guesswork, rework, and downtime.
• Metric fine-thread compatibility (M9 x 0.35): Specifically tuned for fine metric threads to provide precise, repeatable hole checks in critical assemblies.
• Hardened steel construction: Built for durability in busy environments, offering wear resistance and stable measurements over long service life.

Using the JBO Thread Plug Gauge speeds up quality control, minimizes rework, and ensures consistent, reliable mating of components. The Go/No-Go checks are quick and repeatable, helping your team move projects forward with confidence and reduce downtime across shifts.