JBO Thread Plug Gauge - Trapezoidal Go-No/Go - Right Hand - 7H - Tr. 12 x 3 FHH tight-sized features that minimize finishing

tight-sized features that minimize finishing work and improve part accuracy across batches

stable rotation

This intermediate precision reamer is made from M2 high-speed steel and uses a taper shank

It features a left-hand spiral flute with right-hand cutting for controlled material removal in metal parts

and non-technical users who perform frequent tapping work

JBO Thread Plug Gauge - Trapezoidal Go-No/Go - Right Hand - 7H - Tr. 12 x 3 FHH tight-sized features that minimize finishingThe JBO Thread Plug Gauge is a precision inspection tool designed to verify trapezoidal threaded holes quickly and reliably. Built for manufacturers, automotive shops, and aerospace suppliers, it provides a clear go no go verdict on whether threads meet the required standard and size. With its right hand orientation and 7H tolerance (Tr. 12 x 3), this gauge supports accurate, repeatable measurements in demanding environments. Designed with meticulous