Pipe Threaded Plug Gauge, Dimension Type Inch, Gauge Type L-3, Handle Design Member Only, Included Handle Not Applicable, Thread Class L2, Thread Size 3/8 In.-18, Thread Type NPTF, Tolerance Class X, Gauge Finish Uncoated, Gauge Material Tool Steel, Handle Length None, Hardness RC 60-62, Included Certification Certificate of Accuracy with NIST Traceability, Long Form Calibration Certificate No, Standards ASME B1.20.5, Thread Direction Right Hand