Threaded Plug Gauge Assembly Set, Dimension Type Inch, Gauge Type Go/No-Go (Plus/Minus), Handle Design Double End, Included Handle Taperlock 000, Thread Class 2A, Thread Size #2-64, Thread Type UNF, Tolerance Class X, Gauge Length - Go Member 7/32 in, Gauge Length - No-Go Member 7/32 in, Gauge Material Tool Steel, Handle Color Blue, Handle Length 1 1/2 in, Hardness RC 60-62, Included Certification Certificate of Accuracy with NIST Traceability, Pitch Diameter - Go Member 0.0753 in