The JBO Thread Ring Gauge (GO) – Metric Fine, Right Hand, 6g, M140 x 1.5 is a precision tool designed to quickly verify external thread diameters on fasteners, fittings, and machined parts. It's ideal for engineers, quality inspectors, machinists, and shop-floor teams who rely on accurate go/no-go checks to ensure parts meet required thread standards.

Crafted from hardened steel for exceptional durability and wear resistance, this GO gauge stands up to busy workshop use and long service life. The metric fine pattern (M140 x 1.5) with a right-hand thread profile ensures reliable interoperability with common metric components, helping you validate parts during assembly, inspection, and quality control with confidence.

• Accurate Go/No-Go verification: Precisely manufactured to the M140 x 1.5, 6g specification, enabling quick determination of whether external threads conform to tolerance without guesswork.
• Rugged hardened steel construction: Built to resist wear and maintain calibration in demanding environments, delivering dependable performance over many uses.
• Fast, user-friendly checks: Designed for smooth engagement and easy readouts, allowing inspectors to identify conforming threads quickly and keep production moving.

This gauge supports a streamlined quality workflow by delivering consistent, repeatable results across multiple parts and operators. Use it to confirm thread compatibility, reduce inspection time, and minimize rework, helping your team achieve better first-pass yields and reliable assembly outcomes.