Steel 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 Not Applicable, Backing Material Not Applicable, Finish Satin, System of Measurement Metric/SAE, Features Quick Reading, Rule Type Rule, Numeric Marks Inches, Millimeters, Numeric Format Decimal, Fractional, Length - SAE 19 1/2 in, Length - Metric 500 mm, Width - Metric 29 mm, Graduation Units Inches, Millimeters