The JBO Thread Plug Gauge is a precision tool designed for metric fine threads, delivering fast, reliable checks of threaded holes. Built for a wide audience—including engineers, buyers, tradespeople, hobbyists, and non-technical users—it uses a Go/No-Go design to verify a correct M24 x 2 right-hand thread fit at a glance.

• Metric fine-thread compatibility: Optimized for M24 x 2 right-hand threads with 6H tolerance, enabling precise quick checks of hole size.
• Go/No-Go quick inspection: The dual-end design lets you quickly confirm both Go and No-Go limits, speeding up QC and assembly tasks.
• Hardened steel durability: Built to endure daily workshop use, resisting wear and maintaining accuracy over time.

With the JBO Thread Plug Gauge, inspections become quick and decisive. The Go/No-Go evaluation minimizes guesswork, helping you validate hole tolerances in minutes rather than hours of trial assembly. The hardened steel construction stands up to daily use, keeping accuracy stable and reducing the need for replacements. Whether you’re setting up a production line, performing maintenance, or verifying parts for a build, this gauge helps you ship reliable, properly fitting components with confidence.