Plug Gage,Go Type,Class X,0.6628in. dia.
Class X Go Pin Gauge, Material Steel, Finish Uncoated, Diameter 0.6650 in, Dimension Type Inch, Gauge Type Go (Plus), Included Certification Certificate of Accuracy with NIST Traceability, Surface Finish 4 Microinch or Better, Tolerance 0.0001 in, Diameter Range 0.6351 in to 0.