jnehma1,
Do the connectors have screws visible? As in removable like most aftermarket connectors. If so and you are comfortable with a minor task of removing and re-installing one end you can reduce your drill size to that of the cord diameter + 1/8". Sending the un-terminated end up through the now much smaller hole and re-installing the connector from up top. Guessing you would now be in the 3/4" to 1-1/8" range for the pass-through holes.
Just a thought to work with what you already own and not have to spend more for the sake of connector size.
Do the connectors have screws visible? As in removable like most aftermarket connectors. If so and you are comfortable with a minor task of removing and re-installing one end you can reduce your drill size to that of the cord diameter + 1/8". Sending the un-terminated end up through the now much smaller hole and re-installing the connector from up top. Guessing you would now be in the 3/4" to 1-1/8" range for the pass-through holes.
Just a thought to work with what you already own and not have to spend more for the sake of connector size.