The JBO Thread Plug Gauge (NoGo) – Metric Fine is a precision inspection tool used to verify threaded holes with metric fine threads. It is ideal for engineers, inspectors, and shops that require quick, reliable go/no-go checks on M60 x 3 holes, featuring a right-hand thread and 6H tolerance.
Designed for consistent results across production runs, it helps ensure holes meet exact standards without guesswork.

• NoGo verification for metric fine threads: Quickly determine whether a threaded hole is within spec by confirming it does not exceed the maximum size for M60 x 3 with 6H tolerance, reducing rework and scrap.
• Hardened steel construction with knurled grip: Built to endure daily use in demanding environments, offering long tool life and a secure, comfortable grip even when wearing gloves.
• Precise sizing in right-hand metric fine format: Delivers consistent, repeatable measurements aligned with standard threading practice, enabling reliable inspection results across batches.

Using the JBO Thread Plug Gauge streamlines quality control by providing fast, confident pass/fail assessments for threaded holes. Its durable construction and precise metric fine specification help you maintain tight tolerances, improve workflow efficiency, and ensure every component meets your exacting standards.