The JBO Thread Plug Gauge (NoGo) is a precision tool for inspecting metric fine threaded holes. Designed for machinists, inspectors, and quality teams, it helps you quickly verify that threaded holes meet the required M50 x 1.5, 6G, right-hand specifications.

Made from hardened steel, this NoGo gauge is built to resist wear and maintain accurate dimensions through repeated use in demanding shop environments.

• Metric Fine NoGo sizing (M50 x 1.5, 6G, right hand): Delivers consistent go/no-go checks to confirm hole dimensions align with the metric fine standard, enabling fast acceptance or rejection decisions.
• Hardened steel construction: Withstands frequent use in harsh workshop conditions, reducing replacement costs and downtime while preserving accuracy.
• Fast, repeatable inspections: Simple plug gauge design supports quick checks on the production line, helping you maintain consistent thread quality and minimize rework.

This gauge helps your team confirm thread integrity early in the manufacturing process, streamlining quality control and reducing guesswork. By delivering clear, repeatable measurements with durable materials, it supports a reliable inspection routine that keeps production moving and ensures consistent results across parts.