Threaded Plug Gauge, Dimension Type Inch, Gauge Type Go (Plus), Handle Design Member Only, Thread Class 2B, 3B, Thread Size #2-56, Thread Type UNC, Tolerance Class X, Gauge Finish Chrome Plated, Gauge Length - Go Member 1/4 in, Gauge Material Tool Steel, Hardness RC 70-72, Included Certification Certificate of Accuracy With NIST Traceability, Pitch Diameter - Go Member 0.0744 in, Standards ASME B 1.2, Thread Direction Right Hand. This item has been restricted from sale in the following state (s): []