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