Feature:1. This product is a manual rivet nut tool head, easy to install, easy to use and very practically.2. Suitable for the fastening field of various metal plates and pipes and other manufacturing industries.3. Widely used in the assembly of electromechanical and light industrial products such as automobiles, elevators, switches, instruments, furniture, and decoration.4. With M3/M4/M5/M6/M8/M10/M12 different specifications of tips and nuts, it can meet most needs.5. Small size, easy to carry and store, convenient to use and with good performance.Specification:Item Type: Rivet Nut Gun HeadProduct Material: High speed steelProduct Model: M3/4/5/6/8/10/12.Package List:1 x M3 Gun Head1 x M4 Gun Head1 x M5 Gun Head1 x M6 Gun Head1 x M8 Gun Head1 x M10 Gun Head1 x M12 Gun Head1 x M3 Nut1 x M4 Nut 1 x M5 Nut 1 x M6 Nut 1 x M8 Nut 1 x M10 Nut 1 x M12 Nut