The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external metric thread diameters. Built for manufacturing shops, machine shops, field service teams, and quality personnel, it helps confirm that threads meet exact standards before assembly or fit-up.

With a metric fine thread profile (M105 x 3) and a Right Hand orientation, this gauge delivers fast, reliable pass/fail checks for Go/NoGo criteria, reducing guesswork and rework. Crafted from hardened steel for durability, it stands up to daily use in demanding environments.

• Clear Go/NoGo assessment: Instantly determine if external threads meet the metric fine standard (M105 x 3) with a trusted NoGo gauge, reducing guesswork and speeding inspections.
• Rugged hardened steel construction: Built to endure daily use, resist wear, and deliver long service life in workshops and production lines.
• Right-hand gauge with 6g tolerance: Designed for common right-hand threads and consistent results across operators, minimizing misreads and re-inspections.

By providing quick, repeatable measurements of external metric threads, the JBO NoGo Thread Ring Gauge helps you speed up inspections, cut downtime, and improve first-pass acceptance. Its durable steel build reduces replacement costs and maintenance, while the precise NoGo sizing ensures every part you pass meets the M105 x 3 standard. Whether you’re inspecting fasteners, fittings, or machined components, this gauge supports confident decisions and helps your team maintain tight quality control across shifts.