The 3/8inch Composite Twin Hammer Impact Wrench is Ideal for All-Around Auto Use With its ergonomically designed handle, the Aircat 3/8 inch composite twin hammer impact wrench reduces fatigue so you can work longer and faster. Equipped with a potent hammer/spring combination, it delivers powerful twin impacts with just the pull of a trigger, giving you more torque than other tools, instantly. Featuring patented quiet technology, the 3/8inch composite twin hammer impact wrench only produces 86 dB of sound for low volume operation, while an easy flipping lever rapidly changes directions for, convenient driving and backing out. Through-the-handle exhaust keeps debris away from your face for safety. A durable composite housing provides long-lasting durability for years of hassle-free use. 500-ft./lbs. max torque, 1,650 impacts per minute and speeds of 9,500 RPM provide fast, powerful performance.