Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M56 x 1The Asimeto Ring Thread Gauge (NoGo) is a precision tool for engineers, machinists, and quality control professionals who need reliable verification of metric thread sizes. Designed for right hand M56 x 1 threads and the 6g tolerance class, this gauge helps ensure only correctly sized fasteners are used. Size and standard: Metric M56 x 1, Right Hand threads, 6g tolerance class NoGo designation: Quickly confirms whether the thread pitch diameter