JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M42 x 4.5 M&D helping maintain steady workflows

helping maintain steady workflows

and interested hobbyists alike

delivering accurate geometry and a refined surface finish across aluminum

while the left-hand spiral flute promotes efficient chip evacuation and smoother engagement

a 10 mm bore

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M42 x 4.5 M&D helping maintain steady workflowsThe 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.