Technical Description of productsInformation Plain NOT GO caliper gauge Plain GO caliper gauge 6g Class 2 Solid NOT GO screw ring gauge Solid GO screw ring gauge 6g Class 2 NOT GO Inspection ring gauge NOT GO Working ring gauge GO ring gauge (Both for working and inspection) Metric Thread and Gauge Pro le Relation of tolerance position between screw thread classes and thread gauge classes in ISO(new JIS) and old JIS standard. ■External threads and Limit gauges for external threads Basic Major Dia. of external thread 10mm *Relation between tolerance zone of external thread and Class 2 that of limit gauges for external thread is shown.*Pitch Dia. of external thread is virtual pitch Dia. *Pitch Dia. of screw ring gauge is simple pitch Dia. Pitch diameter tolerance and Major diameter tolerance of external thread Tolerance of screw ring gauge and caliper gauge Minimum wear Basic Pitch Dia. of external thread 9.026mm Example:ISO M10X1.5/6g and old JIS M10x1.5/Class2 Class 2 Basic Pro le Max Truncation Min Truncation Min Minor Dia. Max Minor Dia. Only pitch diameter is described. Tolerance zone for Major Dia. of external Limit caliper gauges for Inspection. Limit calipergauges forWorking. Tolerance zonefor Picth Dia.of external thread thread Go Not Go Go Not Go Gauge for Major Dia. of Extenal Thread Gauge for Pitch Dia. of Extenal Thread Technical-9