First of all i am aware of this question: Is it possible to enchant IndustrialCraft items?
The answer from Euphoric states it can be done using books. This is confirmed by the FTB-wiki: This item cannot be enchanted traditionally, however can be enchanted using books.
However in the comments of that particular answer SevenSidedDie notes that this only works on creative mode where every item can be enchanted. Just tested: does not work in Survival mode. (It does work in Creative mode, but that's to be expected since you can put any enchant on any item while in Creative mode.)
I cannot find a clear internet source for this, some say it cannot be done while some say you can. So can drills and other FTB tools be enchanted by books or other means? And if not, are there mods that allow this?