K2929 Class ZZ No-Go Pin Gauge Material Steel Finish Uncoated Diameter 2.75mm Diameter Increment 0.01 mm Diameter Range 1.30mm to 9.99mm Diameter Sub-Range 2.50mm to 2.99mm Dimension Type Metric Gauge Type No-Go (Minus) Included Certification Certificate of Accuracy with NIST Traceability Surface Finish 10 Microinch or Better Tolerance 0.005 mm Tolerance Class ZZ Hardness RC 60/65 Long Form Calibration Certificate No Overall Length 2 in Standards ISO 17025