General description A ten piece set of impact Star bit sockets designed for use with Torx® products. This set includes sizes T20, T25, T27, T30, T40, T45, T50, T55, T60, and T70, all with a 1/2" drive, making them compatible with any 1/2" drive ratchets, bars, or extensions. Technical specifications Sizes included: T20, T25, T27, T30, T40, T45, T50, T55, T60, T70 Drive size: 1/2" Material: CR-V (Chrome Vanadium) Finish: Phosphate Other information Supplied with a storage case