... at least for the first time so that you can see "in person" how it's done!
my little redfoot had a tiny (between 1/16 and 1/8 inch) crack in his beak once, so we had the vet trim his beak down a tiny bit to get rid or it befor eit got bigger -- for a 5 inch redfoot, it was a three person job! my boyfriend held him up and kept his arms back, the vet held his head out and used the dremmel tool, and i kept a small plastic wedge in his mouth to keep it open.
the cutest part was how, when it was all over, my tort marched right over to the dremmel tool and bit it. 
i'd be terrified of trying it myself, but i imagine that many people can and do consider this a do-it-yourself deal.