JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M17 x 0.5 S&E Flexible cutting length and taper

Flexible cutting length and taper options: For every diameter

precise cuts in tight spaces

Ultra-precise run-out (<10 μm): Ensures repeatable tool positioning and a smooth

The proven 5-micron run-out reduces chatter and deflection

The left-hand spiral flute combined with right-hand cutting provides efficient chip evacuation and controlled material removal for a smooth

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M17 x 0.5 S&E Flexible cutting length and taperThe JBO Thread Ring Gauge (GO) Metric Fine Left Hand 6g M17 x 0. 5 is a precision inspection tool used to verify external thread sizes. It helps ensure fasteners, fittings, and machined parts meet exact thread standards, enabling reliable assembly and quality control across manufacturing, maintenance, and service environments. Designed for engineers, inspectors, machinists, and even serious hobbyists, this GO ring gauge delivers consistent