Built for 8 mm end mills and featuring a rigid HSK63A taper
JBO Thread Plug Gauge is a precision inspection tool for metric fine threads
The hard-wearing HSS-E substrate combined with the nano chrome AcuRea coating extends tool life in steel and alloy workpieces
This precision tool combines a left-hand spiral flute with right-hand cutting in a straight shank
With a 1:50 taper and robust HSS construction
JBO Thread Ring Gauge (NoGo) - UNS - Right Hand - 2A - 2 x 12 FMH Built for 8 mm endThe JBO Thread Ring Gauge (NoGo) for UNS, Right Hand, 2A, 2 x 12 is a precision tool designed to verify external thread diameters against Unified thread standards. Its ideal for manufacturers, machinists, QA inspectors, and repair technicians who need fast, reliable confirmation that a threaded component will mate correctly with its counterpart. Crafted from hardened steel for lasting accuracy and wear resistance, this NoGo gauge stands up to daily