The Lufkin tape measure has precise decimal scales in both English and metric. A must for job layouts. rivet hole spacing, etc. Graduated 50th of a foot (.24") for the first tool, and in 10th of inches (.10") for balance. Metric graduated in consecutive millimeters throughout the blade. Blade dimensions 1/2" x 10 feet.1 lbs (0.5Kg) shipping weight.