JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6h - M1.4 x 0.3 FHH while the regular-length body provides

while the regular-length body provides versatile handling for a broad set of milling tasks

10 micron run-out precision: Delivers tighter tolerance on held tools

clean bore finishes with minimal rework

it features a left-hand spiral flute and right-hand cutting for efficient material removal and consistent hole size

The four-flute configuration supports efficient chip evacuation

JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6h - M1.4 x 0.3 FHH while the regular-length body providesThe JBO Thread Ring Gauge (GO) Metric Coarse Left Hand 6h M1. 4 x 0. 3 is a precision tool designed to quickly verify external metric coarse threads. Its ideal for quality control teams, machinists, and assembly technicians who need fast, reliable checks to ensure mating parts thread together correctly. Built from hardened steel, this GO ring gauge delivers durable performance in busy workshops. Its precise dimensions endure repeated use, helping you