Plug Gage,No Go Type,0.3107 in. dia.
3101 in to 0.3150 in, Dimension Type Inch, Gauge Type No-Go (Minus), Included Certification Certificate of Accuracy with NIST Traceability, Surface Finish 4 Microinch or Better, Tolerance 0.Class X No-Go Pin Gauge, Material Steel, Finish Uncoated, Diameter 0.3107 in, Diameter Increment 0.