The JBO Thread Ring Gauge (NoGo) – Metric Fine – Left Hand – 6g – M34 x 1 is a precision tool used to verify external thread diameters on metric-fine threaded parts. It helps inspectors and machinists quickly determine whether a thread is within the specified size and tolerance, flagging non-conforming components before assembly.

Designed for left-handed threads, this gauge supports reliable Go/No-Go checks in demanding workshop environments, helping teams meet required standards and maintain consistent quality across parts and assemblies.

• Precise metric fine threading (M34 x 1, 6g): Ensures accurate Go/No-Go verification of external threads on metric-fine components, helping you confirm size and class quickly and with confidence.
• Rugged hardened steel construction: Delivers exceptional wear resistance and long service life in daily inspections, even in busy workshops.
• Left-hand thread compatibility: Specifically engineered for left-handed threads, enabling fast, unambiguous checks and reducing guesswork during quality control.

By using this gauge, you can speed up inspections, cut rework, and ensure every threaded component meets spec. The combination of precise metric fine sizing, robust hardened-steel construction, and left-hand compatibility supports consistent, reliable results across batches, helping your team maintain quality, reduce downtime, and improve overall production efficiency.