Premium S2 steel bits optimum strength and durability to unfasten unmanageable screws and bit ends are sized for nice advance. Sockets are of permanent Chrome-Vanadium. Includes : 10-piece Torx E socket : 5-pc. in. drive : E4, E5, E6, E7, E8. in. drive : E10, E12, E14, E16. in. : E18 13-piece Torx Bit Socket : 7-pc. in. drive : T8, T10, T15, T20, T25, T27, T30. in. drive : T40, T45, T47, T50, T55. in. : T60 12-piece Torx Tamper Bit Socket : 8-pc. in. drive : TT8H, TT9, TT10, TT15, TT20, TT25, TT27, TT30. in. drive : TT40, TT45, TT50, TT55 Storage and carrying case.