A double head rivet machine is used in file manufacturing to firmly fix metal mechanisms, clips, and fittings onto box files and folders with accurate alignment and strong holding strength. By simultaneously applying rivets on both sides, it ensures uniform pressure and precise fastening, resulting in durable and long-lasting files. The machine improves production speed, reduces manual effort, and maintains consistent quality across all units. Its use enhances product strength, minimizes rejection due to loose fittings, and increases overall efficiency, making it an essential machine for high-quality file manufacturing.