The JBO Thread Plug Gauge (NoGo) - Metric Fine - Right Hand - 6H - M148 x 2 is a precision measuring tool designed for metric fine threads. It’s used to inspect threaded holes across a wide range of industries, helping machinists, inspectors, and engineers quickly confirm that holes meet exact size limits. This NoGo gauge is an essential part of Go/NoGo inspection workflows, ensuring consistency and reliable results in every check.

• Go/NoGo verification for precise hole sizing: Quickly determine whether a threaded hole falls within the required limits, reducing guesswork, rework, and downtime in production and inspection processes.
• Metric Fine compatibility (M148 x 2, 6H): Specifically engineered for metric fine threads and standard 6H internal thread tolerance, delivering repeatable, accurate results across parts and assemblies.
• Durable, ergonomic construction: Hardened steel with a knurled, non-slip body and a protective design for long life in busy workshops, even with frequent handling and challenging environments.

Used correctly, this gauge streamlines setup and quality checks, helping you validate thread holes quickly and confidently. Its robust build reduces wear and replacement needs, supporting consistent measurements, lower scrap rates, and steadier workflow across manufacturing, maintenance, and repair tasks.