> I doubt that many saw shops spent much time hand filing anything.
While YMMV, the shop I used to patronize (retirement closed its doors --
around 30 years ago) I often chatted with the owner (3rd generation or
so). He once talked about hand filing, marathon hand filing. On
Fridays after work ended, contractors would bring in all their saws.
All were to be ready by Monday morning. That was his family's weekend.
I still mourn the closing of that shop. They had sharpened every
conceivable tool with generations of experience!
Mike in Woodland