This 8-piece Torx bit socket set from US PRO Tools features 3/8" drive and a length of 110mm. The set includes Torx bit sizes T25, T27, T30, T40, T45, T50, T55, and T60. The sockets are manufactured from chrome vanadium steel with extra chrome plating and a mirror-polished finish. The bits are made from S2 steel. The set is supplied in a blow-molded case.