Thread Gauge

       Thread gauge is very useful and important tools for inspect thread during manufacturing.  Die and taps are tools for manufacturing inside thread, while thread gauge is inspecting tools. Threa are two classifications:  Thread ring gauge and thread plug gauge, the former inspecting inside thread, the latter inspecting inside thread. Different countries has different standard or popular type. There are many types of thread in the world in terms of pitch, such as Metric standard , NPT, UNC, G , TR, ACME, BSPT. Rok International supplies full range high quality standard products with reasonable price