Pipe Threaded Setting Plug Gauge, Dimension Type Inch, Gauge Type No-Go (Minus), Handle Design Member Only, Included Handle Not Applicable, Thread Class 2A, Thread Size 2-1/2 In.-8, 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, Long Form Calibration Certificate No, Pitch Diameter – No-Go Member 2.7526 in, Standards ASME B1.20.1