Rigid Rule Thickness 0.05 in Graduation Marks 0.5 mm 1/64 in Coating Chrome Graduation Color Black Flexibility Rigid Graduation Mark Style Etched Folding Rule Type Inside Read Backing Material Vinyl Finish Satin System of Measurement Metric/SAE Accuracy + 0.005 in/- 0.0035 in Rule Type Rule Numeric Marks Inches Millimeters Numeric Format Decimal Length - SAE 12 in Length - Metric 300 mm Folded Length 6 in Width - SAE 1 in Width - Metric 25 mm