PowRyte 17pcs 1/2-Inch Air Impact Wrench Set with Impact Sockets and Blow Mold Case Adjustable torque with 4-position power regulator dial for instant change of power Built-in Forward/Reverse Switch for quick and easy switching Exhaust Diffuser reduces tool noise for quiet operation; Molded-in buffers protect the tool from side impact Equipped with all sorts of fittings for tire changing, shock spring works and other workshop applications 250 ft-lb of max torque, 7000rpm Free Speed @90PSI