3/8" socket wrench set Torx nut socket male and female bits S2 E4-E20 T10-T60All socket wrenches are made of chrome vanadium steel. The drill is made of S2 steel.12 socket wrenches, external Torx 3/8" drivers: E4, E5, E6, E7, E8, E10, E11, E12, E14, E16, E18 and E2010 internal Torx bit sockets with 5/16" driver (8 mm): T10, T15, T20, T25, T27, T30, T40, T45, T50, T5511 Torx wrenches, non-hole 3/8" drivers: T10, T15, T20, T25, T27, T30, T40, T45, T50, T55 and T601 x 3/8" driver for drill with 5/16" driver