DEWALT DWHT75900 Carbon Fiber Composite Hammer TackerDEWALT DWHT75900 Carbon Fiber Composite Hammer Tacker Carbon Fiber Composite Structure For 45% Less Weight* and 25% Less Muscle Exertion* 500k Strike Cycles** Drop in Loading for Easy Reloading of Fasteners Our Carbon Fiber Composite Hammer Tacker features a lightweight carbon fiber composite structure. This reduction in overall weight and vibration allows for a longer duration of work with less muscle exertion. Additional Features Auto lock, AntiJam