The JBO Thread Plug Gauge is a precision Go/No-Go inspection tool built for metric fine threads. It helps machinists, quality inspectors, and assembly teams quickly verify threaded holes for correct size and fit.

Designed for right-hand M34 x 0.75 threads (6H), this gauge confirms that parts will thread together cleanly, reducing guesswork and rework in production.

• Fast Go/No-Go verification: Enables a simple pass/fail check that speeds QC and assembly, ensuring consistent hole tolerances across parts.
• Durable hardened steel construction: Withstands daily use in busy workshops, delivering long-lasting performance and resistance to wear.
• Metric fine-thread precision (M34 x 0.75, 6H, right-hand): Matched to common component specifications to provide reliable, repeatable results in critical threading applications.

With this Go/No-Go plug gauge, your team can confirm threaded holes meet the exact M34 x 0.75 specification on the first try, cutting setup time and reducing rework. The rugged hardened steel design withstands daily use in the workshop, while the Go/No-Go checks provide clear, objective results, helping you maintain consistent quality across batches.