JBO Thread Ring Gauge (GO) - UNF - Right Hand - 3A - 7/16 x 20 M&D delivering consistent hole dimensions and

delivering consistent hole dimensions and minimizing finishing work

while the left-hand flute aids chip evacuation during cutting

Varied corner radii: Available in multiple corner radius options to tailor machining to specific mold/die designs and finish requirements

Hardened Steel Construction: Built to endure years of use

delivering consistent thread profiles and reliable machining performance

JBO Thread Ring Gauge (GO) - UNF - Right Hand - 3A - 7/16 x 20 M&D delivering consistent hole dimensions andThe JBO Thread Ring Gauge (GO) for UNF Right Hand 3A 7 16 x 20 is a precision measuring tool designed to verify external thread diameters quickly and reliably. It serves machinists, quality inspectors, and assembly teams who need confident, standards compliant threading checks across a range of industries. Crafted from hardened steel, this GO gauge delivers exceptional durability and wear resistance for demanding shop environments. Its straightforward