Threaded Plug Gauge Assembly Set Dimension Type Metric Gauge Type Go/No-Go (Plus/Minus) Handle Design Double End Included Handle Taperlock 2 Thread Class 6G Thread Size M12 x 1.25 Thread Type Metric Tolerance Class X Gauge Length - Go Member 25.40 mm Gauge Length - No-Go Member 25.40 mm Gauge Material Tool Steel Handle Color Yellow Handle Length 3 in Hardness RC 60-62 Included Certification Certificate of Accuracy with NIST Traceability Pitch Diameter - Go Member 11.16 mm