BBlades calls the Blaster a “clopper-style” propeller, designating it as half-cleaver, half-chopper. Like a cleaver, the Blaster features small blades with a straight trailing edge. The over-hub exhaust reduces drag and performs best when piercing the surface of the water. Like a chopper, the blades are streamlined, rounded with a big cup on the trailing edge. The full, parabolic rake angle increases as the blade moves away from the hub, creating overall lift from the transom to the bow.