The Mac Tools MPF990381 High Performance 3/8 Drive Air Impact Wrench is a top-of-the-line automotive tool designed for professional use. With a maximum torque of 575 ft/lbs, this impact wrench delivers powerful and reliable performance. The single item set includes an air hose fitting, making it convenient for various automotive applications. Manufactured by Mac Tools, a trusted brand in the industry, this tool is a must-have for mechanics and automotive technicians looking for high-quality and durable equipment.