JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M42 x 2 S&E This collet is ideally suited

This collet is ideally suited for hobbyists

The cobalt-infused HSS end mill stands up to heat and wear

with the convenience of a straight shank and coolant through the body

while the square edge delivers accurate geometry and clean part edges on stainless and exotic metals

supporting steady cuts and repeatable results

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M42 x 2 S&E This collet is ideally suitedThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, 6h, M42 x 2 is a precision inspection tool designed to verify external thread diameters on fasteners, shafts, and threaded components. Its ideal for engineers, machinists, quality inspectors, and hobbyists who need quick, reliable checks to confirm parts meet exact M42 x 2 specifications and tolerance. Manufactured from hardened steel for lasting durability, this NoGo gauge resists wear in