Master Star Bit Socket Set, 43Pc Set Includes: (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 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) 1/4” Star Bits: T4, T5, T6, T7, T8 & T9 Includes blow mold case for easy and convenient storage 54137