Steel Rule Spring Tempered Thickness 0.05 in Graduation Marks 1/10 in 1/50 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 SAE Features Quick Reading Includes Case Rule Type Rule Numeric Marks Inches Numeric Format Decimal Length - SAE 6 in Length - Metric Not Applicable Width - SAE 3/4 in Width - Metric Not Applicable