The JBO Thread Plug Gauge is a precision tool built to verify metric fine-thread holes, specifically M33 x 1.5. With a right-hand orientation and 6G tolerance, it’s ideal for engineers, machinists, quality teams, and workshops that require exact thread fits.

Built for durability in busy environments, the Go/No-Go design lets you perform fast, reliable checks of threaded holes—ensuring parts mate correctly and reducing rework. Crafted from hardened steel, this gauge resists wear and maintains accurate measurements over many inspections.

• Go/No-Go design for rapid inspections: Quickly confirm whether a hole meets spec—Go verifies proper engagement, No-Go flags out-of-tolerance threads, speeding up quality checks.
• Metric fine-thread accuracy: M33 x 1.5, right-hand, 6G: Precisely sized for metric fine-thread holes, delivering consistent results for critical fits in assemblies and test setups.
• Hardened steel construction for durability: Built to endure daily shop use, resisting wear and preserving dimensional stability for long-term reliable performance.

This plug gauge helps streamline inspection workflows, reduce downtime, and improve overall thread quality across production and assembly processes. Rely on precise sizing, quick checks, and rugged construction to maintain dependable fits from part to part.