JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M30 x 3.5 End Mill Holders while the DIN 212-B specification

while the DIN 212-B specification ensures consistent performance across Toolex tooling

while the left-hand flute and right-hand cutting optimize chip removal for consistent finishes across standard metalworking materials

ensuring stable alignment and repeatable reaming accuracy

tweaked size with durable HSS (M2) core for reliable performance in manual reaming tasks

while the left-hand spiral flute aids efficient chip evacuation for tight bores

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6g - M30 x 3.5 End Mill Holders while the DIN 212-B specificationThe JBO Thread Ring Gauge (NoGo) is a precision measurement tool designed to check external metric coarse threads. It provides a quick, reliable way to confirm that threaded components meet exact standards and fit requirements. Specifically sized for M30 x 3. 5 with a 6g tolerance and right hand thread, this gauge is ideal for quality control in manufacturing, machine shops, and maintenance environments where consistent thread accuracy matters.