dashes:High efficiency and energy saving16 inch nut gun, thickened carbon steel arm and ergonomic handles can save 40% more energy than tools with traditional rivet nut. Soft rubber grip allows for easy riveting operation. Multiple Accessories7 sets of interchangeable metric chucks/bits: M3, M4, M5, M6, M8, M10, M12. Sturdy plastic case for protection and organized storage Multiple nuts100pcs rivet nuts as follows: M3-20pcs, M4-20pcs, M5-20pcs, M6-10pcs, M8-10pcs, M10-10pcs, M12-10pcs Wide ApplicationsProvide a customizable fastener solution for wide riveting applications: body panels, bicycle fasteners, furniture and decorations, etc. Ergonomic DesignErgonomic plastic handle, fits your hand, non-slip and comfortable to use. Specifications: 1. Longer size, double handle crimping is very labor-saving, which can maximize leverage. 2. The package includes a hand nut/thread adjusting rivet, 7 kinds of interchangeable metric chucks M3, M4 M5, M6, M8, M10 and M12. Contains a total of 100 rivet nuts. 3. Ergonomic handle for ease of use, ideal for working in hard to reach places. Hand rivet set includes: 1 x multi-function wrench Interchangeable pins: M3, M4 M5, M6, M8, M10 and M12 Rivet nuts include: ----20 pcs M3 ----20 pcs M4 ----15 pcs M5 ----15 pcs M6 ----10 pieces M8 ----10 pieces M10 ----10 pieces M12