within the container 33 in this embodiment only three contact sizes are used requiring the machine to be able to discriminate between three different patterns of the projections 35 thus two switches 37 are sufficient to provide the signals corresponding to and identifying the contact sizes a number of wire size selector switches 39 and light emitting diodes 41 are located on the front face 25 of the housing 23 the wire size selector switches 39 are electrically connected to a crimper setting circuit described below which is connected to and controls a stepper motor 40 the stepper motor 40 is mechanically connected to a crimper adjustment knob 41 which is mechanically connected to a crimper not shown a machine operator not shown actuates one of the wire size selector switches 39 to provide a signal identifying the size of wire the operator intends to crimp when a wire size selector switch 39 is actuated the light emitting diode 41 located adjacent to the switch 39 illuminates to indicate the wire size selected the crimper setting circuit not shown accepts the signals from the container switches 37 and the signal from the chosen selector switch 39 and generates a signal which causes a stepper motor 40 to set the crimper adjustment knob 41 thus the crimper not shown is set to a crimping depth which is appropriate for the size of.