Feature: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 ToolMaterial: Carbon steel + ABS + rubberPurpose: Heavy manual riveting machineMetric Mandrel Model: M3, M4, M5, M6, M8, M10, M12Screw Cap Model: M3, M4, M5, M6, M8, M10, M12Rivet Nut Model: M3, M4, M5, M6, M8, M10, M12Rivet 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 Riveter7 x Metric Mandrels7 x Screw Caps1 x Riveter Double Handle20 x M3 Rivet Nut20 x M4 Rivet Nut20 x M5 Rivet Nut10 x M6 Rivet Nut10 x M8 Rivet Nut10 x M10 Rivet Nut10 x M12 Rivet Nut1 x English User Manual1 x Storage BoxNote:Please follow the user manual to use this tool.