Material: HSS-E (high-speed steel with cobalt) for improved heat resistance and wear resistance
A reliable choice for machining tasks requiring tight tolerances and consistent results
and secure retention means you can rely on consistent results across shifts and jobs
The tool’s 30° helix angle optimizes processability
and the straight shank ensures compatibility with standard hand reaming setups
JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M150 x 4 G Material: HSS-E (high-speed steel withIntroducing the JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, 6g, M150 x 4. This precision ring gauge is designed for engineers, inspectors, machinists, and maintenance teams who need fast, reliable verification of external thread diameters and conformance with metric fine thread standards. Crafted from hardened steel, it resists wear in demanding shop environments, delivering durable, repeatable measurements you can trust. Go No Go quick