This Toolzone 27 Piece Torx (Star) Socket & Bit Set is ideal for mechanics, engineers, craftsmen, or DIY enthusiasts. The sockets are made from high-quality chrome vanadium steel for durability and come complete with a handy metal storage case. The set includes 3/8" Drive Star Sockets (E10, E12, E14, E16, E18), 1/2" Drive Star Sockets (E20, E22, E24), 3/8" Drive Star Bits with Sockets (T20, T25, T27, T30, T40), 1/2" Drive Star Bits with Sockets (T45, T50, T55, T60, T70), 25mm Tamperproof Star Bits (T8, T10, T15, T20, T25, T27, T30, T40), and one 3/8" drive Bit Adaptor. The star sockets and bits feature a female and male fit, a satin polished finish, and are made from chrome vanadium.