The JBO Thread Plug Gauge (NoGo) for Electrical Conduit is a precision tool designed to verify internal threads in conduit fittings and other threaded components. This right-hand gauge is tailored to the M50 x 1.5 thread size with a 7H tolerance, enabling fast, reliable go/no-go checks during assembly, inspection, or quality control. It’s a practical choice for engineers, machinists, and field technicians who need consistent thread verification without guesswork.

Built for professional use, the gauge features a textured knurled body for a secure grip and repeatable testing in demanding environments. The NoGo portion provides immediate visibility of non-conforming threads, helping prevent mismatches and costly rework across manufacturing, automotive, and aerospace workflows.

• Fast NoGo verification: Delivers quick pass/fail results to identify out-of-tolerance threads, speeding inspections and reducing bottlenecks on the shop floor.
• Right-hand M50 x 1.5 with 7H tolerance: Precisely matched size and tolerance for reliable engagement with electrical conduit fittings and components.
• Durable, non-slip knurled body: Rugged construction with a secure grip that stays comfortable and accurate through daily use, even with gloves.

Using the JBO Thread Plug Gauge helps you streamline threaded-hole inspection, ensure proper fitment, and maintain consistent results across batches. Its exact M50 x 1.5 size and 7H tolerance support dependable, repeatable tests, giving your team confidence in every conduit assembly, repair, or maintenance task.