A pneumatic rivet gun is a tool used to fasten materials together by driving rivets. It operates using compressed air, which provides the power needed to insert and secure the rivet in place. This type of rivet gun is commonly used in construction, automotive, and manufacturing industries due to its efficiency and speed. The tool typically features a trigger to control the airflow and a nozzle that fits various rivet sizes. Pneumatic rivet guns are favored for their ability to handle large volumes of work quickly, making them ideal for assembly lines and projects requiring strong, permanent joints.