Abstract: A process for assembling a rigid fitting to a flexible or elastic tube or hose within one of a portable, hand-held and/or mountable assembly device, including the steps of slip-fitting the fitting within a pusher member of the device that includes a torque-producing source capable Of converting input power into linear motion force; b. temporarily restraining a hose open end within the assembly device and; activating the torque-producing source to linearly advance the pusher member and fitting, relative to the restrained hose end, for physically inserting the fitting into the hose open end. Additional steps include: retraction of the pusher member and releasing the now-assemble hose and fitting assembly from the assembly device. Product-by-process claims and article claims, pertaining to the assembly device used in the process for assembling, are also set forth.