Oil Gauging Tape Measures Double Duty Oil Gauging Tape Measure SAE/Metric Blade Length 25 ft Blade Width 1/2 in Graduation Type in /ft/mm/cm Graduations Bottom Side MM Top Side in Ft/In to 8ths Blade Material Steel Tip Style Swivel Snap Case Type Open Case Material Steel and Plastic with Grounding Strap Blade Color Chrome with Black Markings Case Color Chrome Blade Coating Clear Coat