Fortum (4700427) socket, 1/2", 27 mm, L 42 mm, 61CrV5

Drive Socket - greater durability, Fortum socket wrenches are cast from 61CrV5 chrome-vanadium steel and oil-hardened on NCS machines and hardened around the perimeter for optimum hardness and strength in thin-walled construction, 61CrV5 and 61CrV4 (designated both 6150 and 6140) is the highest grade of chrome-vanadium steel, hardened and coated with matt hard chrome for optimum surface hardness and corrosion resistance, this steel is used for all but the most exposed parts, DYNAMIC DRIVE™ Pressure transfer to the sides of the screw allows for optimal stress distribution in the head TECHNICAL PARAMETERS 27 mm, L 42 mm