Includes 8 bits and 1 magnetic quick release bit holder For Torx® head screws 1/4" hex drive. Bits sizes: T10, T15, 2x T20, 2x T25, T30, T40 High performance alloy steel Sandblasted finish Magnetic quick release bit holder with locking system (E 6.3) In clamshell packaging DIN 3126, ISO 1173 Style C 6.3