JBO Thread Ring Gauge (GO) - UNC - Right Hand - 3A - No. 3 x 48 FLH secure setup with a rigid

secure setup with a rigid BT50 interface: minimizes setup time and ensures accurate cutter alignment for repeatable first-pass results

Precise Ø0

repeatable finishes in challenging machining environments

helping to minimize chatter and produce cleaner holes

047") kerf for efficient material removal and clean slots

JBO Thread Ring Gauge (GO) - UNC - Right Hand - 3A - No. 3 x 48 FLH secure setup with a rigidJBO 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