Impact Wrench

High Quality Content by WIKIPEDIA articles! An impact wrench also known as an impactor, air wrench, air gun, rattle gun, torque gun is a socket wrench power tool designed to deliver high torque output with minimal exertion by the user, by storing energy in a rotating mass, then delivering it suddenly to the output shaft. Compressed air is the most common power source, although electric or hydraulic power is also used, with cordless electric devices becoming increasingly popular in recent times. Impact wrenches are widely used in many industries, such as automotive repair, heavy equipment maintenance, product assembly often called pulse tools" and designed for precise torque output, major construction projects, and any other instance where a high torque output is needed. Impact wrenches are available in every standard socket wrench drive size, from small 1/4 drive tools for small assembly and disassembly, up to 3.5 and larger square drives for major construction. Impact wrenches are one of the most commonly used air tools, and are found in virtually every mechanic's shop.