Crescent Lufkin W606PD 1/4" x 6' Executive Diameter Yellow Clad A19 Blade Pocket Engineer's Tape MeasureLufkin W606PD Description The W606PD tape is designed for measuring diameters of pipe, cable, tire, and so on. It has a polished chrome case and zero falls in the same place on each side of the blade. For conversion from diameter to circumference, simply turn the blade over. It also has easy to read bold graduations on yellow background blade. The spring action returns blade to case and it shows diameter inches to 100ths. The blade style: A19. Lufkin