JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - 1/2 x 13 Morse Taper Adaptor backlash-minimized connection between the spindle

backlash-minimized connection between the spindle and face milling cutter that reduces runout and supports consistent surface finishes

delivering consistent finishes with minimal chatter

With a 2‑flute ball nose configuration and carbide construction

It helps you achieve clean finishes

this reamer shortens overall production time and lowers the risk of rework on precision components

JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - 1/2 x 13 Morse Taper Adaptor backlash-minimized connection between the spindleThe JBO UNC Go No Go Thread Plug Gauge is a precision inspection tool designed to verify 1 2 x 13 Unified National Coarse (UNC) threads in holes and threaded bores. Its ideal for engineers, machinists, quality teams, and shop floor technicians across manufacturing, automotive, and aerospace who need fast, dependable thread checks. With its go no go design and a 2B tolerance class, this right hand gauge delivers reliable pass fail results that help