Plug Gage,UNC,Light Blue,12-24 Thread
243 in.Threaded Plug Gage, Dimension Type Inch, Gauge Type Go (Plus); No-Go (Minus), Handle Design Assembly, Included Handle STI Plug 0, Thread Class 2B, Thread Size #12-24, Thread Type UNC, Tolerance Class X, Gauge Finish Chrome Plated, Gauge Length - Go Member 1/2 in, Gauge Length - No-Go Member 5/16 in, Gauge Material Tool Steel, Handle Color Light Blue, Hardness RC 70/72, Included Certification Certificate of Accuracy, Long Form Calibration Certificate Yes, Pitch Diameter - Go Member 0.