For decimal measuring in automotive, aircraft, electronic, paperboard, and box manufacturing industries. Fractional graduations on upper edge and decimal graduations on lower edge. First 6" of blade graduated in 32nds on upper edge and 50ths of inch on lower edge. Balance of blade graduated in 16ths on upper edge and 10ths of inch on lower edge. Push-button lock with power return. Die-cast yellow case. 1/2" x 12'.