The JBO Thread Plug Gauge is a precision inspection tool designed to quickly verify metric coarse threaded holes. It’s ideal for machinists, assembly technicians, quality control teams, and shop-floor professionals who need reliable, repeatable checks to confirm threads meet standard size and tolerance requirements. With its Go/No-Go design, you get a fast, clear indication of hole readiness, helping you keep assemblies on schedule and within spec.

• Go/No-Go Quick-Check: Immediately confirm whether a hole meets the required tolerance with a simple pass/fail read, speeding up inspections and reducing guesswork during setup and assembly.
• Hardened Steel Durability: Crafted from hardened steel to resist wear and corrosion, delivering long-lasting accuracy in busy workshop environments and across many measurement cycles.
• Exact M22 x 2.5 Coarse Thread (Right-Hand, 6G): Precisely matched to standard coarse-thread holes, ensuring consistent go/no-go results and compatibility with common components in metric applications.

Designed to improve workflow and reliability, this gauge helps you verify threaded holes before installation, reducing rework and downtime. Its robust construction and exact thread specification offer dependable performance in manufacturing, maintenance, and repair tasks, giving you confidence that your parts will fit correctly and function as intended.