Camel
Feed your battery drills 12v from a car battery and use the variable speed trigger for speed. If they don't have a variable trigger get something that wasn't used to build the ark.
Bruce, thank you for your sage advice, no spare battery, not gunna but one, not gunna run leads from Ute, transformer will be easiest if it works . But I will try and work the variable speed out, maybe just a matter of getting the hamster to run faster