Threaded Plug Gage Dimension Type Inch Gauge Type Go (Plus) No-Go (Minus) Handle Design Assembly Included Handle STI Plug 4 Thread Class 2B Thread Size 3/4 In.-10 Thread Type UNC Tolerance Class X Gauge Finish Chrome Plated Gauge Length - Go Member 1 in Gauge Length - No-Go Member 5/8 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 0.8149 in