Pin Gauge Set ZZ Plus .011 in-.06 in 50 pcs. Material Steel Diameter Increment 0.001 in Diameter Range 0.0110 in to 0.0600 in Gauge Type Go (Plus) Overall Length 2 in Tolerance +/-0.00020 in Hardness RC 60-65 Included Certification Certificate of Accuracy Standards NIST Dimension Type Inch