Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M38 x 1The Asimeto Ring Thread Gauge (NoGo) is a precision metric tool designed for engineers, machinists, and quality teams who need to verify thread sizes with confidence. Crafted for M38 x 1 right hand threads and tuned to the 6g pitch diameter tolerance, its NoGo designation quickly reveals threads that are too large or out of spec. 6g tolerance class: ensures accurate pitch diameter measurement for metric threads, supporting tight quality control. NOGO