An assembly tool for use in assembling orthopaedic prosthetic components includes a frame including a pair of telescopic rods, and a base plate secured to the telescopic rods. The base plate includes a mounting bracket configured to engage a first orthopaedic prosthetic component. A mechanical actuator includes (I) a housing secured to the frame, (ii) a ram plate configured to engage a second orthopaedic prosthetic component, and (iii) a drive mechanism coupled to the ram plate. The drive mechanism includes a connecting rod coupled to the ram plate, a handle rotatably coupled to the housing, and a clutch pin that is moveable between (I) an engaged position in which the handle is coupled to the connecting rod such that rotation of the handle causes the ram plate to move toward the base plate and (ii) a disengaged position in which the handle is decoupled from the connecting rod such that the ram plate remains stationary when the handle is rotated. The handle engages an end of the clutch pin to move the clutch pin from the engaged position to the disengaged position when the handle is rotated from a first position to a second position.
