The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine-thread holes. It’s ideal for manufacturers, machinists, and assembly professionals who need quick, reliable checks to confirm fit and avoid misthreads in critical applications.

Designed for right-hand metric fine threads, this gauge targets common specifications such as M35 x 0.75 with a 6H tolerance, ensuring your holes accept the correct mating parts and maintain consistent performance.

• Go/No-Go quick inspection: Quickly determine if a threaded hole is within tolerance, reducing guesswork and speeding up setup and assembly.
• Metric fine-thread compatibility (M35 x 0.75, 6H): Precisely aligns with common metric fine-thread specifications, helping prevent cross-threading and ensuring reliable mating with the right components.
• Durable hardened steel with knurled grip: Built to withstand daily workshop use with wear resistance; knurled surface provides a secure, slip-free grip even when wearing gloves.

Using the JBO Thread Plug Gauge helps you speed up inspections, reduce rework, and maintain high first-pass yield. Its rugged construction delivers dependable performance in busy shops, while the Go/No-Go approach provides clear, actionable results that support confident decisions on fit and assembly.