Steel Rule, Spring Tempered, 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, Includes -, Rule Type Rule, Numeric Marks Inches, Millimeters, Numeric Format Decimal, Fractional, Length - SAE 12 in, Length - Metric 300 mm, Width - SAE 1 in, Width - Metric 25.4 mm