JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M18 x 2.5 is a compact inspection tool designed to verify metric coarse-thread holes quickly and accurately. It’s ideal for engineers, machinists, inspectors, and maintenance teams who need a reliable way to confirm that a hole will accept an M18 x 2.5 thread and mate with the corresponding fastener. The right-hand orientation aligns with standard production threads for consistent checks.

Crafted from hardened steel for durability, this gauge features a go/no-go design for fast pass/fail checks. The right-hand configuration helps you integrate it smoothly into your workflow while maintaining accuracy and repeatability across multiple inspections.

• Go/No-Go Quick Verification: Instantly confirms whether a hole meets the M18 x 2.5 coarse-thread specification, delivering a clear pass/fail indication to speed up quality checks and reduce guesswork.
• Designed for Metric Coarse Threads: Precisely checks coarse-thread holes to ensure proper mating with fasteners and components, helping prevent mismatches in production and assembly.
• Hardened Steel Construction: Built to endure demanding workshop use while preserving accuracy over many inspections, offering reliable performance across shifts and batches.

Using this gauge in your inspection routine helps you verify thread compatibility early, shorten downtime, and improve consistency across parts and assemblies. The robust, right-hand design is built to last, providing dependable measurements you can count on as part of your quality process.