JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M78 x 1.5 Boring Bar Blank and surface finish across a

and surface finish across a range of materials

delivering long tool life and reliable results when machining hardened steels and alloys

Left-hand spiral flute with right-hand cutting: This geometry improves chip evacuation and delivers a clean

reducing heat buildup during cutting

This reamer’s stub length and straight shank are designed for rigid guidance in shallow or through‑hole finishing work

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M78 x 1.5 Boring Bar Blank and surface finish across aThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, 6e, M78 x 1. 5 is a precision inspection tool designed to verify external thread diameters on bolts, fittings, and machined components. Its ideal for engineers, machinists, quality control teams, and shop floor technicians who need quick, reliable checks to ensure threads meet exact standards. Made from hardened steel for durability, this NoGo ring gauge provides a clear, repeatable limit for