Pneumatic Tools
An impact wrench, also known as an air gun, torque gun, or rattle gun, is a high-torque tool designed to tighten or loosen bolts, nuts, and fasteners quickly and with minimal manual effort. It delivers sudden, high-torque output by storing energy in a rotating mass (hammer mechanism) and releasing it in short bursts. Sizes : 1/4' to 1.1/2'square drive with maximum torque capacity of approximately 4000 Nm.'