Pipe Threaded Plug Gauge Dimension Type Inch Gauge Type L-1 Handle Design Member Only Thread Size 1/2 In.-14 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 Standards ASME B1.20.5 Thread Direction Right Hand