The JBO Thread Ring Gauge (NoGo) - Metric Fine, Right Hand, 6g, M40 x 0.75 is a precision inspection tool designed to verify external thread sizes on a wide range of parts. It’s ideal for engineers, machinists, quality control teams, and workshop professionals who need quick, reliable thread checks to confirm parts meet exact specifications.

Built from hardened steel, this NoGo gauge delivers durable performance in demanding environments, resisting wear and maintaining accurate measurements over time. The metric fine pitch of M40 x 0.75 and a right‑hand orientation ensure consistent, straightforward checks, helping you identify non‑conforming threads at a glance and keep production moving smoothly.

• Durable hardened steel construction: withstanding frequent use in busy shops, it preserves dimensional accuracy and delivers long service life for reliable, repeated inspections.
• Clear NoGo quick-check capability: enables fast, decisive go/no-go assessments, reducing inspection time and minimizing guesswork on threaded parts.
• Metric fine thread accuracy: M40 x 0.75, right-hand: precisely matched to standard metric fine threads, ensuring correct fit checks and consistent results across parts.

Using this gauge streamlines your quality workflow by delivering fast, objective thread verification. It helps reduce rework, speeds up acceptance testing, and supports consistent assembly quality, giving you confidence in every measurement and every part that passes through your line.