The JBO Thread Ring Gauge (NoGo) is a precision instrument used to verify external thread diameters with tight tolerances. Built for metric fine threads and left-hand applications, this NoGo gauge targets the M33 x 1.5 size to ensure components meet exact specifications.

Crafted from hardened steel, it delivers durable wear resistance for daily shop use, maintaining accuracy through repeated inspections and demanding environments. Its simple, intuitive design makes it easy to identify non-conforming parts and support consistent quality control.

• NoGo verification for metric fine threads: Delivers fast pass/fail results for components with M33 x 1.5 left-hand threads, helping you spot out-of-tolerance parts quickly and reduce inspection time.
• Durable hardened steel construction: Built to withstand daily use in busy shops, providing long-lasting accuracy and resistance to wear so you can rely on consistent measurements over time.
• Specialized for left-hand metric fine threads (M33 x 1.5, 6g): Precisely matched to left-hand, metric fine pitch to ensure accurate measurements and smoother setup for your specific components.

Using the JBO NoGo gauge streamlines quality control by delivering clear, repeatable results for threaded parts. Its rugged build and precise sizing reduce rework, support compliant inspections, and help engineers and technicians achieve reliable, repeatable thread measurements across jobs.