This is a comprehensive rivet nut ratchet kit designed for setting rivet nuts and rivet studs in various materials. The kit features a hand-held rivet setting plier with a ratchet mechanism, making it easier to install rivet nuts in hard-to-reach areas and requiring less force compared to manual setting pliers. It also includes a quick-change mandrel system for fast and efficient changes between different sizes. The kit comes with mandrels and sleeves for M4, M5, M6, M8, M10, and M12 rivet nuts, as well as 5mm, 6mm, and 8mm rivet studs. All components are neatly organized in a durable storage case.