Acoustic Guitar Construction

Prepping the nut on my OM from KMG.
Can anyone make a recommendation on what nut file(s) to get?

Thanks,
Renee

Using the medium set of these is a good place to start. I also have a bass set and some light files from them as well.

http://www.japarts.ca/Uo-Chikyu/Uo-Chik ... -Files.asp