The JBO Thread Plug Gauge is a precision tool designed for metric fine threads, specifically calibrated for left-hand M22 x 2 holes with a 6H tolerance. It’s an essential inspection accessory for machinists, technicians, and quality control professionals who need quick, reliable checks during assembly or maintenance.

Engineers and shop floor personnel will appreciate its rugged Go/No-Go design that enables fast, decisive hole verification. With this gauge, you can confirm whether a threaded hole will accept the mating part or require adjustment, helping prevent misfits and rework.

• Go/No-Go quick inspection: Quickly confirm whether the threaded hole is within tolerance, speeding up quality checks and reducing downtime.
• LH metric fine thread compatibility (M22 x 2, 6H): Precisely matched to left-hand M22 x 2 threads and 6H tolerance, ensuring accurate fit with LH components.
• Hardened steel, durable construction: Built to withstand daily workshop use with wear resistance to maintain accuracy over time.

Using this gauge helps you streamline your measurement workflow: you’ll quickly validate hole readiness, reduce guesswork, and improve mating reliability across assemblies that use left-hand M22 x 2 threads. The robust construction minimizes tool replacement and keeps your quality checks consistent, even in high-throughput environments.