Sealey 32 piece impact socket set standard deep 3 8 1 2 sq drive sealey ak681 manufactured from chrome vanadium steel with an electro deposition manganese phosphate finish for added corrosion resistance walldrive sockets selected on duometric principle suitable for use with impact air wrenches supplied in robust carry case sealey ak681 impact socket set 32pc standard deep 3 8 1 2 sq drive metric imp