JBO Thread Ring Gauge (GO) - UNC - Left Hand - 2A - 7/8 x 9 FMH FLH FHH S&E A&NF M&D The stub length and straight

The stub length and straight shank deliver rigidity in standard toolholders

and more consistent performance during demanding operations

it helps you complete projects faster

The tool uses intermediate precision carbide (K10) to deliver consistent results over multiple uses

Extended reach with long and extra-long lengths: Lets you reach deep pockets and internal features without changing tools

JBO Thread Ring Gauge (GO) - UNC - Left Hand - 2A - 7/8 x 9 FMH FLH FHH S&E A&NF M&D The stub length and straightThe JBO Thread Ring Gauge (GO) for UNC Left Hand threads, sized 7 8 x 9 with 2A tolerance, is a precision go gauge designed to verify external thread diameters quickly and reliably. Its an essential tool for quality control across manufacturing, maintenance, and inspection environments, helping inspectors confirm that threaded components conform to the 7 8 x 9 UNC standard. Crafted from hardened steel, this GO gauge delivers durability and wear