The JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, M11 x 1 is a precision inspection tool for verifying external thread diameters. It’s designed for machinists, inspectors, and manufacturing teams who need fast, dependable checks to confirm threads meet the required size and pitch.

Manufactured from hardened steel for durability, this NoGo ring gauge withstands daily use in demanding shop environments. Its simple, intuitive design lets you quickly identify non-conforming threads and keep production moving.

• Clear non-conformity identification: Quickly reveals threads that are out of tolerance, helping inspectors flag rejects immediately and reduce rework.
• Hardened steel durability: Built for wear resistance in busy workshops, delivering long tool life even with repeated use.
• Metric fine M11 x 1, right-hand design: Precisely sized for common metric fine threads with the correct right-hand orientation, ensuring consistent, repeatable checks.

In daily use, the JBO NoGo Ring Gauge helps streamline inspections by delivering fast, reliable pass/fail results for external threads. Its durable construction and precise sizing reduce downtime, improve measurement repeatability, and support quality assurance across jobs—from in-house production to field maintenance.