Deep Wall Drive® sockets manufactured from Chrome Vanadium steel. Electrodeposition finish for added corrosion resistance. Suitable for use with impact wrenches. Contents: Sockets; 10, 12, 13, 15, 16, 17, 18, 19, 21, 22, 24, 27mm, Extensions; 125, 250mm, Universal Joint 1/2" Sq. Supplied in metal carry-case. Model No. AK5815M