Darin,
This is the 1st time I have heard of a 9/64" file. I know that you still get a 1/8" (8/64"), though not as easy to find.
Basicaly, there are 3 manufacturers who supply the world market with chain saw files.
The largest is U.M.V. which stands for Usines Metalurgiques de Vallorbe, Switzerland (excuse me as I probably spelled their name wrong).
They market theif files in the USA strictly private label. Some of the Manufacturers which they supply files to include, OREGON, STIHL, TOTAL (Tilton Equipment), TIMBER SAVAGE (Ahlborn Equipment) & NPA Pro-File (Formerly Norman Prince Associates).
Next would be Pferd (German), marketed in the USA under their own name. I believe they also private label for Bailey's.
The last one is Vialla, Finland. They market in the USA under their own name as well as private label for Bailey's. They also supply files to Sandvik & Windsor.
So I don't get in trouble, I am 95% sure regarding the reference to Bailey's. If by chance I am not, there's my out!!
For what it's worth, files manufactured by U.M.V. are generally considered the best!!!
How's that for a long answer to a short question!!!
ArborDude