Drop-forged Chrome Vanadium steel sockets, hardened and heat treated with a fully polished mirror finish. S2 Steel hex bits with a blackened finish for resistance to corrosion. Bits feature no shoulder for easier access to recessed fixings. Sockets include 2mm hex setscrew allowing easy replacement of individual bits. Supplied in storage case. This Sealey Hex Socket Bit Set includes 7 pieces with a 3/8" square drive and a 150mm length, featuring metric sizes. The sockets are made from drop-forged Chrome Vanadium steel, while the bits are S2 Steel for corrosion resistance. The set comes in a storage case.