High Efficiency and Energy SavingThickened carbon steel arm and ergonomic handles can save 40% effort. Soft rubber handle allows for easy rivet operation. Easy ApplicationReplaces rivet rod with ease. Simply insert the rivet rod into the rivet tongs. After installing a rivet nut, a simple turn of the rotary knob will easily spin the threaded rivet nut. Multiple Accessories7 sets of interchangeable metric chucks/bits: M3, M4, M5, M6, M8, M10, M12. Attached to the box. The M8 chuck is already on the tool, so the plastic box is empty. 100pcs rivet nuts as following: M3-20pcs, M4-20pcs, M5-20pcs, M6-10pcs, M8- 10pcs, M10-10pcs, M12-10pcs Wide ApplicationsProvides a customizable fastening solution for wide riveting applications: body panels, bicycle accessories, furniture and decorations, etc. Ergonomic DesignErgonomic plastic handle, hand-fitted , non-slip and comfortable to use. Plastic box: 38024562mm Weight: 2.68 kg Number of nuts: M3, M4, M5 each 20PCS; M6, M8, M10, M12 each 10PCS, seven specifications total 100PC; Screws: 3, 4, 5, 6, 8, 10, 12 each 1 set total 7PCS The number of rivets: 3.2, 4.0, 4.8, 6.0, 6.4 each 10 pieces, a total of 5 kinds of riveter nozzle 50 pieces: 3.2, 4.0, 4.8, 6 ,0,6,4 each 1pcs.A total of 5 kinds Rivet gun adapter shank: M3, M4, M5, M6, M10, M12 each 1 set total 6PCS Upper handle: 1PCS Dual-use gun: 1PCS Multi-function wrench: 1PCS Please understand that pure manual measurement has a slight deviation luckymeet