The S K Hand Tools BIT HEX 5MM FOR SKT44304 is a precision shaftdriver that works with anySKT44304 hand tool. The BIT HEX has an eight-positionadjustable bit head, which makes it easy to drive every shaped shank of metal without fail. The accurate and durable SHTF4304 BIT HEX is perfect for driving sharp edges and removing nicks from metals.