JBO Thread Ring Gauge (GO) - UNC - Right Hand - 3A - No. 3 x 48 FLH The combination of HSS-E construction

The combination of HSS-E construction and a spiral flute delivers durable performance under demanding cutting conditions

and shank diameter: 0

accurate contours on thin ribs while standing up to demanding machining tasks

and the optimized flute geometry promotes efficient chip evacuation

and a left-hand spiral flute with right-hand cutting provides controlled material removal and efficient swarf management

JBO Thread Ring Gauge (GO) - UNC - Right Hand - 3A - No. 3 x 48 FLH The combination of HSS-E constructionJBO Thread Ring Gauge (GO) UNC Right Hand 3A No. 3 x 48 is a precision Go gauge designed to verify external UNC threads on a wide range of components. Crafted from hardened steel, it delivers durable, reliable go no go checks that stand up to daily use in demanding workshop environments. Designed for engineers, inspectors, machinists, and quality teams, this ring gauge provides a quick, trustworthy way to confirm thread size and fit, helping ensure