The JBO Thread Plug Gauge is a precision tool for metric fine-thread holes, built for machinists, engineers, quality teams, and hobbyists who need consistent, reliable checks. This right-hand, 6G class gauge is specifically sized for M11 x 0.5 threads, delivering accurate go/no-go results to speed up setup and prevent misfits.

• Go/No-Go design for fast, reliable checks: Quickly determine if a bore is within tolerance, reducing inspection time and preventing misfits.
• Specifically tuned for M11 x 0.5 metric fine threads: Provides accurate go/no-go results for these precise threads, improving fit accuracy in assemblies.
• Hardened steel construction for lasting durability: Resists wear from repeated use, maintaining accuracy and extending tool life.

Used in daily QC and production, this plug gauge speeds inspections, minimizes downtime, and ensures every thread fits correctly the first time—helping you improve workflow and product quality with confidence.