The JBO Thread Plug Gauge (NoGo) — Pg - Right Hand - Pg 42 x 16 — is a compact, hand-held inspection tool for quickly verifying external thread dimensions against the NoGo limit. It’s an essential instrument for engineers, machinists, quality inspectors, maintenance staff, and hobbyists who need fast, reliable checks to confirm threaded components meet specification during manufacturing, assembly, or service work.

Made from hardened steel for lasting performance, this gauge resists wear and maintains consistency even in busy workshops. Its knurled, ergonomic body provides a secure grip and precise positioning, while the NoGo sizing gives an unambiguous pass/fail indication that helps reduce rework and keep production flowing smoothly. The right-hand orientation supports common threading practices and straightforward use across a wide range of parts.

• NoGo limit for quick conformance checks: Instantly determine whether a thread size is within the maximum allowable tolerance, helping you spot out-of-spec parts at a glance and minimize rework.
• Hardened steel construction: Built to withstand daily use, resist wear, and maintain measurement accuracy over many cycles in demanding environments.
• Ergonomic, right-hand design: Knurled grip and balanced geometry enable fast, repeatable checks with less fatigue, improving throughput on busy jobs.

Using the JBO Thread Plug Gauge (NoGo) streamlines quality control by delivering clear, reliable results that support consistent threading across parts and batches. It protects your workflow from slow inspections and uncertainty, helping you meet standards with confidence while reducing downtime and waste.