Pipe Threaded Plug Gauge Dimension Type Inch Gauge Type Go (Plus) Handle Design Member Only Thread Class 2B Thread Size 1/2 In.-14 Thread Type NPSM 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 Pitch Diameter - Go Member 0.7784 in Standards ASME B1.20.1 Thread Direction Right Hand