The JBO Thread Plug Gauge is a precision Go/No-Go tool designed for metric fine threads. It helps inspectors, machinists, and assembly teams quickly verify threaded holes meet exact limits, ensuring components fit together with confidence.

Specifically sized for M24 x 1.5 with a 6H tolerance and right-hand threading, this gauge is built from hardened steel to withstand daily use in busy workshops and production lines.

• Go/No-Go quick hole verification: Quickly confirm both the minimum and maximum thread limits for M24 x 1.5 holes, enabling fast quality decisions and reducing trial fittings.
• Hardened steel construction: Built to endure regular use, resisting wear and maintaining accurate checks over time for reliable performance.
• Right-hand, 6H tolerance for M24 x 1.5: Precisely matched to common metric fine-thread holes, ensuring consistent fit checks on standard parts and assemblies.

This gauge streamlines quality control by delivering clear, repeatable pass/fail results for each hole, helping you keep production moving and reduce rework. Its robust construction pairs with a simple, intuitive inspection process — no guesswork, just reliable measurements you can trust across shifts and teams.