JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M42 x 4.5 M&D high-precision cutting tool engineered for

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

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

This reamer offers dependable hole finishing with a rigid carbide body and a compatibility focus for common toolholding and coolant setups

a 10 mm bore

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M42 x 4.5 M&D high-precision cutting tool engineered 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.