The Powerbuilt 70 pc. 1/4”, 3/8”, 1/2” Dr. Master Socket Set, No. 949007, from Alltrade Tools, is organized in high-end EVA foam trays that slide right into the drawers of a toolbox. This set is made of chrome vanadium steel construction and is drop forged and heat treated for maximum durability. The mirror-polished chrome finish prevents corrosion. This set conforms with ANSI standards and includes deep and shallow 1/4”, 3/8” and 1/2” drive sockets in various sizes.