A hand-operated rivet setting tool, having an upper handle, a lower handle, a housing which is connected to the lower handle at its first end and houses a pump assembly and a flexible reservoir, the pump assembly, connected to a flexible reservoir, the front assembly for setting a rivet, having a nose tube connected to a hydraulic cylinder of the pump assembly, a lever assembly, wherein the lever assembly and at least one of the handles are operationally connected to the pump assembly, wherein the pump assembly is sufficiently designed to advance the hydraulic cylinder with the nose tube to set the rivet when the lever of the lever assembly is in a first position, and wherein the pump assembly is sufficiently designed to open a passage for oil to return into the flexible reservoir and the hydraulic cylinder with the nose tube to retrieve toward the housing when the lever of the lever assembly is in a second position.