JBO Thread Ring Gauge (NoGo) - UNF - Left Hand - 2A - No. 6 x 40 Power Milling Chucks Wide diameter range with tight

Wide diameter range with tight tolerance: Delivers precise

Application: Finishing and precise reaming to achieve accurate bore size and smooth bore surface

and shops needing accurate

and more dependable performance job after job

delivering smoother operation and improved surface finishes

JBO Thread Ring Gauge (NoGo) - UNF - Left Hand - 2A - No. 6 x 40 Power Milling Chucks Wide diameter range with tightThe JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external UNF threads. Sized for Left Hand, 2A class, No. 6 x 40, it enables quick, confident checks in manufacturing, automotive, and aerospace environments. The No Go design helps you identify non conforming threads at a glance, supporting accurate assembly and reliable performance. Manufactured from hardened steel, this gauge delivers durability in busy inspection rooms. Its