The JBO Thread Ring Gauge (GO) is a precise inspection tool built to verify external metric threads. It’s ideal for engineers, machinists, quality teams, and workshop staff who need fast, reliable go/no-go checks to confirm thread size and fit.

Crafted from hardened steel, this GO gauge for metric fine threads combines durability with consistent performance in demanding environments. It targets right-hand threads with a 6g tolerance and is sized for M27 x 0.5, making it a straightforward companion for standard assemblies and quality control routines.

• Accurate GO check for M27 x 0.5 external threads: Enables quick pass/fail verification of thread size, helping ensure mating parts fit correctly and reducing the risk of assembly issues.
• Durable hardened steel construction: Delivers excellent wear resistance and long service life in busy shops, maintaining accuracy over time with minimal maintenance.
• Right-hand metric fine thread compatibility (6g, M27 x 0.5): Designed for common modern fasteners, providing reliable measurements and straightforward use in typical metric-thread applications.

Using the JBO Thread Ring Gauge (GO) streamlines inspections by delivering clear go/no-go results, which speeds up quality control and minimizes rework. Its robust build supports repetitive use in demanding environments, giving you confidence that parts meet standards and will perform as intended in the field.