Starrett C331-300 Full Flexible Steel Rule With Millimeter And Inch Graduations, 300mm Length, 12.7mm Width, 0.4mm Thickness Satin Chrome Finish This rule has full millimeter length Graduations: No. 31 - 1/32" and 1/64" on one side; mm and 1/2mm on reverse, all four edges graduated from same end Full-flexible Measurement Graduations: 1/32 inches, 1/64 inches on, millimeters, 1/2 millimeters