Is Smooth Cut the only 'grit' (what the heck is it called for a file?) you need?For new files at a reasonable price the Bahco files are good. Find a single cut 8" to 12" smooth cut. Antique shops are a good place to look for old, USA made Black Diamond & Nicholson files that still have good life left in them. Growing up my Dad had dozens of great files and I took having them for granted. Now I wish I had taken better care of them. I still have a couple of good USA made Nicholson files, but I hesitate to use them much now until I can find one or two more. Another thing is that unless you buy a well made and expensive Swiss file or the like, any new file you buy now is a disposable tool, they will not last long with constant use.
Mine is a barrel from Kibler and to be honest, it looks pretty good as it is.