JBO Thread Plug Gauge - UNJC Go-No/Go - Right Hand - 3B - 5/16 x 18 NCDC Drill Chuck BS 328/4 specification is included

BS 328/4 specification is included in the build

The DIN 8051 B tolerance (D = ISO H5) and taper-shank design ensure compatibility with common machine setups and toolholders

Max speed of 25

reliableChecks to ensure threaded holes meet exact specifications

this reamer helps you finish tasks faster

JBO Thread Plug Gauge - UNJC Go-No/Go - Right Hand - 3B - 5/16 x 18 NCDC Drill Chuck BS 328/4 specification is includedThe JBO Thread Plug Gauge UNJC Go No Go is a precision inspection tool designed to verify threaded holes against Unified thread standards. Built for demanding environments across manufacturing, automotive, and aerospace, it helps inspectors quickly determine whether a thread hole meets spec, promoting reliable fit and consistent performance. Sized for right hand threads in 5 16 x 18, 3B class, this plug gauge enables fast Go No Go validation of holes.