JBO Thread Ring Gauge (GO) - UNC - Left Hand - 2A - 7/8 x 9 FMH FLH FHH S&E A&NF M&D The tool uses intermediate precision

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

With a standard length that integrates smoothly with existing tooling setups

it helps you complete projects faster

you get a tool tailored to your tolerance requirements and ready when you need it

purpose-built for intricate mold and die work

JBO Thread Ring Gauge (GO) - UNC - Left Hand - 2A - 7/8 x 9 FMH FLH FHH S&E A&NF M&D The tool uses intermediate precisionThe 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