General description A set of short metric Hex socket bits ranging from 3mm to 17mm, available in two drive sizes: 3/8" and 1/2". Technical specifications 3/8" Drive socket bits: 45mm long Sizes: 3mm, 4mm, 5mm, 5.5mm, 6mm, 8mm, 10mm 1/2" Drive socket bits: 55mm long Sizes: 12mm, 14mm, 17mm Material: Satin finish chrome vanadium for sockets, impact grade S2 steel for bits