No joy there, they only carry American files which are tapered, those that I've checked are way too big, what they call 3/8" are .390" and bigger!! Simonds makes 3/8" straight files, see the other thread, we've been down this path before. MT's diamond files may work well, just depends on what their actual diameter is, if anyone has one or has a store locally that could put a caliper on one, it would be nice.

Tim