JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M42 x 4.5 M&D Whether resizing a bore for

Whether resizing a bore for a fastener or achieving a precise final diameter for a critical component

2‑flute cutting tool designed for precise pockets

high-precision cutting tool engineered for hard-to-machine materials

Each unit is manufactured to order by Toolex Ltd

2-flute design with 6 mm shank for rigidity and compatibility: The robust shank and efficient flute design minimize chatter and fit standard tool holders for easy setup and reliable performance

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M42 x 4.5 M&D Whether resizing a bore forThe JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external metric coarse threads. Calibrated for M42 x 4. 5 with a 6g tolerance and a right hand thread, it helps inspectors, machinists, and quality teams quickly confirm that threaded components meet the required size and fit. Designed for busy shops, this NoGo gauge streamlines go no go checks, supporting consistent, reliable results across production and inspection tasks.