What is impact wrenches?

An impact wrench (also known as an impactor, impact gun, air wrench, air gun, rattle gun, torque gun, windy gun) is a power tool designed to deliver high torque output. It stores energy in a rotating mass, then delivers it suddenly to the output shaft. They are commonly used in automotive repair, heavy equipment maintenance, product assembly, major construction projects, and any other instance where high torque outputs are needed.