I agree with "kingisomer". The tool is cheap, but can very easily be made for free in a few minutes. Any flat slotted end will work fine. You just want it to be able to spin quick (hence putting your drill on the end of it), and not bounce around loosely, as that will chew up the end of the oil pump, and perhaps the shaft that the distributor sits in. You obviously want it to remain oil tight afterwards.
Don't worry too much about burning out your drill; as "Hotrod Lincoln" mentioned, it is VERY obvious once that pressure is built up, and you can stop at that point.
Hope that simplifies it for you.
