The Matco Tools 7-pc 1/4" and 3/8" Drive SAE Hex Ball Bit Socket Set, No. SABBX7V, is designed for use on SAE hex fasteners. The set comes equipped with 1/4” and 3/8” drive bits that allow users to tackle a wide range of projects. Made to last, the bits are manufactured with S2 steel and finished with zinc phosphate coating for corrosion resistance. High-visibility markings include two black rings for easy ADV distinction. The set includes 1/4" drive: 1/8" and 5/32", and 3/8" drive: 3/16", 7/32", 1/4", 5/16", and 3/8".