Threaded Plug Gauge Assembly Dimension Type Inch Gauge Type Go/No-Go (Plus/Minus) Handle Design Assembly Included Handle Trilock 5-1/2 Thread Class 2B Thread Size 1 7/8 In.-12 Thread Type UNC Tolerance Class X Gauge Finish Chrome Plated Gauge Length - Go Member 1 1/4 in Gauge Length - No-Go Member 7/8 in Gauge Material Tool Steel Handle Color Blue Handle Length 5 in Hardness RC 70-72 Included Certification Certificate of Accuracy With NIST Traceability