JBO Thread Ring Gauge (GO) - UNF - Right Hand - 3A - No. 1 x 72 ER Mini Collet Chucks Durable Knurled Body and Robust

Durable Knurled Body and Robust Plug: Built to withstand daily workshop use

2 x 64 is a precision inspection tool designed to verify external thread diameters to Unified thread standards

Designed for precision work in molds and dies

Pitch: Coarse pitch for aggressive material removal

Flutes: 2-flute design to improve chip evacuation and surface finish

JBO Thread Ring Gauge (GO) - UNF - Right Hand - 3A - No. 1 x 72 ER Mini Collet Chucks Durable Knurled Body and RobustThe JBO Thread Ring Gauge (GO) UNF Right Hand 3A No. 1 x 72 is a precision GO gauge used to verify external threads to UNF standards. Sized No. 1 x 72 with right hand threads and a 3A tolerance class, its ideal for inspectors, machinists, and workshop technicians who need quick, reliable conformance checks. Accurate UNF GO verification: Quickly checks external thread diameters against UNF GO standards to confirm proper size and fit, reducing guesswork