Heavy duty industrial grade rivet nut inserter for use with M3-M12 aluminium, steel and stainless steel rivet nuts. Features and Benefits • Unique mechanism reduces operator effort by 40% • Ergonomically designed PVC shock-proof handle to eliminate operator fatigue• Easy and effortless to use with its long arm design• Working stroke identification scale • Easy design to release stuck rivet nuts • Complete with 7 mandrel kits: M3, M4, M5, M6, M8, M10 & M12 and wrench