1High Quality Material: The manual rivet kit is made of high strength metal material, with high hardness, strong wear resistance and long operating life after heat treatment. 2Interchangeable Rivet Heads: Eight pairs of interchangeable nandrels are provided, including M3, M4, M5, M6, 1024, 1/420, 632, and 83 This manual rivet kit provides you with basical objects when you start riveting. 3Ergonomical Design: The riveter handle adopts ergonomic design, which allows a single hand operation, to make your riveting work easier and save more effort. 4Wide Application: The rivet kit is suitable for metal work, gutter, automotive, aviation, railway, elevator, instrument, furniture and other common projects. 5Easy Operation: You could replace the riveting rod with ease, just simply spins clockwise for several turns. Also, there are easy pumping sleeves to help replacing the mandrels.