Steel Rule Thickness 0.1 in Graduation Marks 1/64 in 1/100 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 Rule Type Rule Numeric Marks Inches Numeric Format Decimal Length - SAE 48 in Length - Metric Not Applicable Width - SAE 1 1/2 in Width - Metric Not Applicable Graduation Units Inches Graduation Scale 16R