Meet the JBO Thread Plug Gauge for metric fine threads. This right-hand Go/No-Go gauge verifies M6 x 0.5 threaded holes quickly and reliably, helping engineers, machinists, and maintenance teams confirm proper fit before assembly.

• Go/No-Go quick verification for M6 x 0.5: Quickly confirm hole fit with a simple in/out check, reducing inspection time and ensuring consistent assembly results.
• Durable hardened steel construction: Built to withstand frequent use in busy workshop environments, delivering long tool life and reliable measurements.
• Right-hand orientation with 4H tolerance: Designed specifically for metric fine threads, providing accurate checks that align with common production standards and minimize rework.

With the JBO Thread Plug Gauge, quality checks become faster, more reliable, and easier to document. The Go/No-Go design supports clear acceptance decisions, while the hardened steel body resists wear, helping you prevent incorrect assemblies, reduce downtime, and keep production moving smoothly.