ok sorry to double post but ive been doing some research and ive found a way that seems to be fairly simple to do this so let me go over it to make sure it sounds legit;
as opposed to spending 25 bucks on a peghole reamer i believe that a round file from home depot will get the edge of the peghole to the right size if i go slow and check the size often against my tuners. once i get it right, i will use a 25/64 drill bit in a hand drill to go about halfway through, then repeat the process on the other side. one question im finding hard to get an answer to is how would i go about clamping and placing the guitar for a sturdy drilling area, i dont have any professional setups just a table and some c-clamps, what should i do. (its an angled peghead by the way)
after that, to drill the holes for the metal guides, i found a diagram with precise measurements on stewmac. i was planning on first measuring the placement out and then chalkin the tips and double checking it that way. the diameter is .096 inch, so just use that drill bit im assuming. for depth, i was just gonna go a little, then try the fit, then go a little more, then try the fit etc till it works.
does this sound good or are there any serious flaws in my plan?
[edit]
i found another explanation that said a good way to prevent damage was to turn the drill bit backwards, would this be a good idea?