An Air Impact Wrench is a pneumatically powered torque tool designed to tighten or loosen nuts, bolts, and fasteners with high rotational force (torque). It operates using compressed air to drive an internal impact mechanism — typically a twin hammer, pin clutch, or jumbo hammer system — that delivers rapid, high-energy blows to the output shaft. This design produces strong, instantaneous torque with minimal reaction force, making it ideal for automotive, industrial, construction, and heavy-equipment applications where fast, reliable fastening is required.