JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M4.5 x 0.75 ER Collet Chucks Left-hand spiral flute with right-hand

Left-hand spiral flute with right-hand cutting: enables clean

plus compatibility with standard collets and toolholders for quick

Through coolant keeps cutting edges cooler for longer life and better surface finish

This tool excels at producing precise fillets and smooth surface finishes on small features

Optimized rake angle for stronger edges: Improves cutting efficiency and edge durability

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M4.5 x 0.75 ER Collet Chucks Left-hand spiral flute with right-handThe JBO Thread Ring Gauge (NoGo) Metric Coarse Right Hand 6g M4. 5 x 0. 75 is a precision inspection tool designed to verify external thread diameters to ISO metric coarse standards. Ideal for quality control teams, machinists, and assembly technicians, it helps ensure threaded components meet exact specifications for reliable fit and function. Built from hardened steel, this NoGo gauge delivers durable, long lasting performance in busy workshops. The