A stainless steel bit holder with quick chuck shank is included. Kit Contents: Torx Plus: T40, T45, T50, T55, T60, Tamperproof Torx Plus: T10, T15, T20, T25, T30, T40, T45, T50, T55, T60, 1/4″ Drive adaptor, 1/4″ Magnetic stainless steel bit holder, 3/8″ Drive adaptor.