I want to cut/drill/grind a small drainage hole (maybe more than one) in through the base of a plastic terrarium. I don't have a drill on hand but I have a Dremel Micro rotary tool. Is it alright to use one of these bits to do this kind of thing? Which one would be best?
The Dremel will do what you need here. The 2nd bit from the left will work perfectly. It will drill a small pin hole to a larger hole the size of the largest portion of the bit