Asimeto Ring Thread Gauge (NoGo) - Metric - Right Hand - 6g - M33 x 1.5The Asimeto 686 Series NoGo Ring Thread Gauge is a precision instrument for verifying metric threads to the 6g tolerance class. Designed for machinists, inspectors, and quality teams, it helps ensure only correctly sized fasteners are used in critical assemblies. Designation: NoGo ring gauge used to determine whether the thread pitch diameter is within the maximum allowable limit. Tolerance Class: 6g tolerance for metric threads, delivering tight,