The Blue Spot Tools 13 PCE Torx Socket Bit Set (T8-T70) is manufactured from chrome vanadium for increased durability. Features knurled sockets to provide a secure grip. Complete with a useful carrying case for quick and easy storage. The set includes T8, T10, T15, T20, T25, T27, T30 sockets with 1/4" drive, T40, T45, T50, T55, T60 sockets with 3/8" drive, and a T70 socket with 1/2" drive. Made from chromium-vanadium steel for strength and durability, it resists abrasion, oxidation, and corrosion.