Threaded Ring Gauge, Long Form Calibration Certificate No, Material Tool Steel, Dimension Type Metric, Gauge Type Go/No-Go (Plus/Minus), Pitch Diameter 10.994 mm (Go), 10.854 mm (No-Go), Pitch Diameter - Go Member 10.994 mm, Pitch Diameter - No-Go Member 10.854 mm, Thread Class 6G, Thread Length 11.1 mm, Thread Size M12 x 1.50, Thread Type Metric, Compatible Holder Size 3T, Finish Uncoated, Gauge Design Adjustable, Hardness RC 60-62