Tackle the tough jobs with the power and speed of this true workhorse! CP749 1/2-In. Drive Super Duty Air Impact Wrench from Chicago Pneumatic is designed with a patented spring hammer clutch for smooth operations and added durability. Powerful and impact-resistant motor of the air impact wrench provides high torque for tougher jobs. Provided with one-handed reverse button with 4-power settings, the air tool ensures easy functionality. This pneumatic wrench features a powerful motor to deliver high torque. High torque wrench is suitable for heavy automobile and light truck applications.