Durable and lightweight, the Snap-on 1/2" Drive Air Impact Wrench, No. MG725, features one-piece machined magnesium housing that aligns the internal parts in a way that reduces vibration. The patented cushion grip helps insulate the user’s hands from cold and reduces fatigue. Featuring an eight-vane rotor, the MG725 has fast motor startup and higher performance with more torque. The twin-hammer impact mechanism is hard-hitting to quickly remove stubborn fasteners. With a slim-style nose, the MG725 works in restricted access areas while the anvil stops when the trigger is released to prevent throwing fasteners.