A rivet gun is a tool used to drive rivets, which are metal fasteners that join materials together. It operates by using compressed air or electricity to create a strong force that deforms the rivet, securing it in place. Rivet guns are commonly used in construction, manufacturing, and shipbuilding, where strong, permanent joints are required. There are different types of rivet guns, including hand-held and pneumatic models. The choice of rivet gun often depends on the size and type of rivets being used, as well as the specific application. Proper use of a rivet gun ensures structural integrity in projects involving materials like metal and plastic.