JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6h - M1.1 x 0.25 A&NF while the spiral flute design

while the spiral flute design facilitates efficient chip evacuation for a more consistent cut

while the HSS substrate offers durable performance across multiple rework cycles

while the optimized geometry supports reliable performance across a range of depths and radii

secure quick-change: Designed for DIN69871 and DV50 spindles

The result is superior surface finishes and more forgiving machining of hard materials

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6h - M1.1 x 0.25 A&NF while the spiral flute designThe JBO Thread Ring Gauge (NoGo) in Metric Coarse, Right Hand, 6h, M1. 1 x 0. 25 is a precision inspection tool designed to verify external thread diameters with speed and consistency. Ideal for quality control teams, machine shops, manufacturers, maintenance technicians, and even skilled hobbyists, it helps you confirm that metric coarse threads meet the specified maximum size so parts assemble correctly the first time. Crafted from hardened steel,