Nut rivet chucks size: M3 / M4 / M5 / M6 / M8. The rivet gun adopt the ergonomic design to save your strength greatly. High strength aluminum body with forged carbon steel top handle. The portable box makes sure you take it to any place you want to go, which is space-saving and convenient. Suitable for use in repairing cars, trailers and furniture, or even boat building. Descrioption: 100% brand new and high quality Body material: steel Handle cover material: rubber Color: blue + black Nut Rivet Chuck Size: M3 / M4 / M5 / M6 / M8 Total length of hand tool: approx. 27cm / 10.63 Characteristic: Includes wrench to hold handles and adjust chucks. Ergonomic steel tool with non-slip handle. Durable, easy to use. Suitable for use in repairing cars, trailers and furniture, or even boat building.