Whether you are inspecting the pitch diameter and functional threads on a product, or ensuring that your manufacturing equipment is calibrated to industry standards, this Vermont Gage 361133050 Ring Gauge will be an essential tool. The ring gauge measures 3/8 in-16 and has a go/no-go configuration. It comes with a certificate of accuracy with NIST traceability. This 2A class ring gauge has a 0.3331, 0.3287 pitch diameter. The Vermont Gage Threaded Ring Gauge is the high quality tool you need for your job.. This item has been restricted from sale in the following state (s): []