Abstract: An apparatus for crimping a terminal onto a stripped end of a wire lead, including an anvil positioned on a frame, and a movable die mounted on a shuttle on the frame so as to be reciprocally vertically slidable thereon. The die is positioned so as to align with the anvil in the indicated direction, and generally so that the die impacts on a terminal held on the upper surface of the anvil. An actuator, such as a shaft having an eccentrically mounted crankpin, is adapted to impart reciprocating motion to the die along said predetermined direction via a link having a variable length connected between the shuttle and the actuator. This link includes an adjusting bolt for adjusting the length of said link means during setup of the apparatus, and a stepped spacer for quickly and easily adjusting the length of the link between runs.