The JBO Thread Ring Gauge NoGo, Metric Coarse (Right Hand, 4h, M2 x 0.4) is a precision inspection tool designed to verify external thread diameters and ensure components meet NoGo tolerances. It’s ideal for engineers, machinists, quality teams, and maintenance staff who need fast, reliable checks to confirm correct thread size and fit. Its right-hand configuration and 4h class support consistent, repeatable inspections across production runs.

Crafted from hardened steel for rugged use, this gauge delivers long-lasting durability and wear resistance in demanding workshop environments, helping you rely on accurate measurements over time.

• Durable hardened steel construction: Built to withstand daily use in busy shops, resisting wear to maintain precise measurements and a long service life.
• Fast NoGo verification: Intuitive design lets you identify non-conforming components at a glance, speeding inspections and reducing downtime.
• Consistent, repeatable results: Precise dimensions ensure dependable readings across batches, supporting reliable quality control and optimal fits.

With the JBO NoGo gauge, you gain a reliable tool that streamlines thread inspection workflows. Quick, one-step checks help reduce guesswork, minimize rework, and maintain consistent fits for metric coarse threads such as M2 x 0.4. The robust construction translates to fewer replacements and steady performance across shifts, making it a dependable addition to quality control, manufacturing, and maintenance operations.