Titan 54137 43-Piece Master Star Bit Socket Set 43-piece star bit socket set includes external star sockets, star bit sockets, tamper resistant star bit sockets and star bits 12 External Star Sockets: (1/4 Drive): E4, E5, E6, E7, E8 (3/8" Drive): E10, E12, E14 (1/2" Drive): E18, E20, E22, E24 13 Star Bit Sockets: (1/4" Drive): T10, T15, T20, T25, T27, T30 (3/8" Drive): T40, T45, T47, T50, T55 (1/2" Drive): T60, T70 12 Tamper Resistant Star Bit Sockets: (1/4" Drive): TT10, TT15, TT20, TT25, TT27, TT30 (3/8" Drive): TT40, TT45, TT47, TT50, TT55 (1/2" Drive): TT60 6 Star Bits: (1/4" Drive): T4, T5, T6, T7, T8, T9