Pneumatic wrenches, also known as air wrenches or impact wrenches, are powerful tools widely used in automotive, manufacturing, and industrial maintenance. They utilize compressed air to deliver high torque output, making them ideal for tightening or loosening bolts and nuts efficiently. Key features include lightweight design, durability, and variable speed control. Common types include pistol-grip, right-angle, and inline wrenches, catering to different applications. Popular models may feature ergonomic handles, adjustable torque settings, and quick-change sockets. These tools are essential for heavy-duty tasks in assembly lines, construction, and equipment repair, offering superior performance compared to manual or electric alternatives.