Features 1、Spring Loaded Design: Unique spring loaded hex socket automatically locks the rotation of the manual installation mandrel. 2、Labor Saving Operation: With thickened carbon steel arms and ergonomic rubber handles, the operation is comfortable and labor saving. 3、With Hinge Handle: The handle of the rivet gun has a double compound hinge, which maximizes leverage and is easy to operate. 4、Multiple Models: With various types of mandrels, rivet nuts and screw caps, easy to use and replace, suitable for different scenarios. 5、Strong Practicality: The manual riveting gun can be operated in narrow areas and is suitable for repairing car panels, bicycle accessories, decorations, etc. Specification Item Type: Rivet Nut Tool Material: Carbon steel + ABS + rubber Purpose: Heavy manual riveting machine Metric Mandrel Model: M3, M4, M5, M6, M8, M10, M12 Screw Cap Model: M3, M4, M5, M6, M8, M10, M12 Rivet Nut Model: M3, M4, M5, M6, M8, M10, M12 Rivet Nut Quantity: 100pcs (M3 x 20, M4 x 20, M5 x 20, M6 x 10, M8 x 10, M10 x 10, M12 x 10) Package List 1 x Heavy Hand Riveter 7 x Metric Mandrels 7 x Screw Caps 1 x Riveter Double Handle 20 x M3 Rivet Nut 20 x M4 Rivet Nut 20 x M5 Rivet Nut 10 x M6 Rivet Nut 10 x M8 Rivet Nut 10 x M10 Rivet Nut 10 x M12 Rivet Nut 1 x English User Manual 1 x Storage Box