JBO Thread Ring Gauge (NoGo) - UNC - Right Hand - 2A - 1 1/2 x 6 End Mill Holders The small corner radius supports

The small corner radius supports clean pocketing and contouring

Used as part of a disciplined QC workflow

speed up assembly-ready checks

consistent hole sizes with good surface quality

delivering long-lasting performance with excellent wear resistance in demanding environments

JBO Thread Ring Gauge (NoGo) - UNC - Right Hand - 2A - 1 1/2 x 6 End Mill Holders The small corner radius supportsThe JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external UNC threads with confidence. Ideal for manufacturing, automotive, and aerospace environments, it helps quality teams quickly confirm that fasteners and mating parts meet Unified thread standards. The NoGo design provides an immediate, visual indication of nonconforming threads, so you can trap mismatches before they proceed to assembly. Engineered for right hand UNC