JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 3A - 1 x 12 NCDC Drill Chuck Tapered neck for added rigidity:

Tapered neck for added rigidity: The tapered geometry increases stability during deep groove cutting

versatile clamping range

ER25 Compatibility: Designed to fit standard ER25 collet chucks for quick

this reamer helps you achieve consistent bore quality with fewer passes and less setup time

reliable toolholding for CNC milling and drilling

JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 3A - 1 x 12 NCDC Drill Chuck Tapered neck for added rigidity:The JBO Thread Ring Gauge (NoGo) for UNF Right Hand 3A 1 x 12 is a precision tool designed to verify external UNF threads on fasteners, fittings, and threaded components. Built for engineers, machinists, quality inspectors, and workshop technicians, its compact 1 x 12 size makes it easy to handle on busy benches while delivering reliable go no go checks. With its NoGo design, this gauge provides a clear pass fail indication for non conforming threads,