Abstract: The apparatus comprises wire gripper jaws (2, 4), a crimping die (6), a crimping anvil (7) and an insulation stripping unit (8). An insulated wire (W) is inserted between the jaws (2, 4) in an open position, between the die (6) and the anvil (7) and between stripping blades (14) of the stripping unit (8), to engage a wire sensor (26). The jaws (2, 4) then close, the stripper blades (14) close to sever the insulation of the wire (W) and the stripper unit (8) is retracted to strip the end portion (P) of the wire (W). The die (6), and the anvil (7) onto which a terminal (T) has been fed are then simultaneously moved towards each other to crimp the terminal (T) to the stripped wire end portion (P) and the jaws (2, 4) are opened and the die (6) and anvil (7) are moved apart. The wire (W) is then ejected from the jaws (2, 4) by an ejector (28).