The device (10) has a handle assembly (40) and a bone anchor driver assembly (20). The handle assembly (40) has an upper handle portion (50) and a lower handle portion (60). The upper or lower handle portion is rotatable relative to the other handle portion. A bone anchor driver assembly (20) is for rotatably driving a bone anchor (12) into a hole in a bone. The bone anchor driver assembly (20) is fixed to one of either the upper or lower handle portions (50 or 60).