JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - 7/8 x 9 G and a durable AcuRea coating

and a durable AcuRea coating to deliver consistent

helping you rely on accurate measurements day after day

repeatable results across aluminium and non-ferrous projects

and faster setup across production runs

Used in precision engineering and quality-control workflows

JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - 7/8 x 9 G and a durable AcuRea coatingThe JBO Thread Plug Gauge is a precision UNC go no go gauge designed for fast, reliable inspection of threaded holes. Built for demanding environments like manufacturing, automotive, and aerospace, it verifies a 7 8 9 UNC thread hole meets Unified thread standards. The right hand orientation aligns with common UNC threads, making it intuitive for inspectors and machinists alike. With its dual ended go no go design, you get a clear pass fail result in