The NAP DK4 is a combination between a fixed blade and an expandable broadhead. Features a pivoting fixed blade and improved bleeder blades. It has a 1 3/4" cutting diameter, and the bleeder blades have a 1 1/8" cutting diameter. This unique design allows for the fixed blade to be held in position by the Spitfire spring clip until it comes in contact with something. After that, the fixed blade can pivot and move around any bone that it may come in contact with.