Specifications: Star E female socket Star bit socket Star tamper bit socket Star plus bit socket CrV socket 2 Pcs S2 bit: construction Star 14 Pcs E socket: 5 pc - 1/4" Dr.: E4, E5, E6, E7, E8 5 pc - 3/8" Dr.: E10, E11, E12, E14, E16 4 pc - 1/2" Dr.: E18, E20, E22, E24 17 Pcs Star Bit Socket: 10 pc - 1/4" Dr. :T6, T7, T8, T9, T10, T15, T20, T25, T27, T30 5 pc - 3/8" Dr.: T40, T45, T47, T50, T55 2 pc - 1/2" Dr.: T60, T70 Star 17 Pcs Tamper Bit Socket: 10 pc - 1/4" Dr. :T6H, T7H, T8H, T9H, T10H, T15H, T20H, T25H, T27H, T30H 5 pc - 3/8" Dr.: T40H, T45H, T47H, T50H, T55H 2 pc - 1/2" Dr.: T60H, T70H 12 Pcs Star Plus bit socket: 7 pc - 1/4" Dr.: T8, T10, T15, T20, T25, T27, T30 4 pc - 3/8" Dr.: T40, T45, T47, T50, T55 1 pc - 1/2" Dr.: T60