Threaded Ring Gauge Long Form Calibration Certificate No Material Tool Steel Dimension Type Metric Gauge Type Go (Plus) Pitch Diameter 9.16 mm Pitch Diameter - Go Member 9.16 mm Thread Class 6G Thread Length 11.1 mm Thread Size M10 x 1.25 Thread Type Metric Compatible Holder Size 3T Finish Uncoated Gauge Design Adjustable Hardness RC 60-62 Included Certification Certificate of Accuracy with NIST Traceability Standards ASME B1.16M Tolerance Class X