The JBO Thread Plug Gauge (NoGo) - Metric Fine, Right Hand, 6H, M115 x 4 is a precise inspection tool designed to verify metric fine threaded holes. It’s ideal for machinists, quality inspectors, engineers, and maintenance professionals who need quick, dependable checks to confirm holes meet exact standards during production, assembly, and hand-fit work.

• NoGo precision for metric fine threads: Quickly confirm that a threaded hole does not exceed the maximum size for M115 x 4, helping prevent assembly issues and reducing rework.
• Durable hardened steel construction: Built to withstand daily use in busy workshops, offering excellent wear resistance and long tool life for repeatable results over time.
• Right‑hand orientation with 6H tolerance alignment: Delivers consistent, repeatable measurements that align with standard metric fine-thread specifications, simplifying calibration and audits.

This gauge supports streamlined quality checks, faster acceptance testing, and greater confidence in threaded-hole performance. With robust materials and precise sizing, it helps you maintain reliable results from first article through ongoing production, minimizing downtime and ensuring components meet the required specifications.