The JBO Thread Plug Gauge (GO) – Metric Fine, Right Hand, 6H, M135 x 4 is a precision inspection tool designed to verify threaded holes against exact metric standards. It’s ideal for quality control in manufacturing, engineering, and maintenance environments, delivering quick, reliable go/no-go checks for the M135 x 4 thread in metric fine form.

• Durable hardened steel construction: Built to withstand daily use and resist wear, delivering long-lasting accuracy in demanding environments.
• Easy, fast GO checks for M135 x 4: The GO gauge design enables quick identification of properly threaded holes, speeding quality control in production and maintenance contexts.
• Precision-ground for reliable results: Exact 6H tolerance and metric fine threading ensure repeatable measurements across parts and inspections, reducing rework and guesswork.

Using this GO thread plug gauge simplifies threaded-hole inspections by providing clear, repeatable results. Its durable construction and precise dimensions for M135 x 4 metric fine threads help speed up setup, maintain consistent quality, and support reliable go/no-go decisions across engineering, manufacturing, and maintenance tasks.