Pin Gage Minus Cylindrical 52100 Tool Steel - 60/62 Rc Nominal Size (In.) 0.071 Grade Class ZZ Measuring Range (In.) 0.071 Accuracy (In.) 0.0000/-0.0002 Tolerance Class ZZ (0.0002 In.) 0 Holes Length (In.) 2 Width (In.) 0.0710 Height (In.) 2 Meets/Exceeds ISO 17025 2005 by A2LA Includes Certificate of Accuracy with NIST traceabilityCalifornia proposition 65 warning