JBO Thread Ring Gauge (GO) - UNC - Right Hand - 2A - 2 x 4.5 A&NF By delivering repeatable measurements and

By delivering repeatable measurements and easy identification of conforming threads

Diameter: 30 mm cutting circle for compact

Precise 16

Sized for reliable use at 33

Easy installation and repeatable seating: Simple to install and remove

JBO Thread Ring Gauge (GO) - UNC - Right Hand - 2A - 2 x 4.5 A&NF By delivering repeatable measurements andThe JBO Thread Ring Gauge (GO) UNC Right Hand 2A 2 x 4. 5 is a precision inspection tool designed to verify external thread diameters and confirm compliance with UNC 2A specifications. It enables fast, reliable Go No Go checks for threaded components across manufacturing, maintenance, and quality control workflows. Built from hardened steel, this ring gauge delivers exceptional durability and wear resistance in busy shop environments. Its