Where can I get good metal files that have a high quality metal and that has been heat treated all the way through?

Answer 1

A metal machinists supply store or online.

I have many tiny and intricately shaped Swiss files. I bought them almost 50 years ago.

Any metal file should be hardened all the way through, except the tang.

I'm not sure about wood files. They are surely hardened.

What do you plan to file, because there are many types of files.

Answer 2

The best files in the world, just one vendor. No, they are not cheap:

https://www.riogrande.com/category/tools-and-equip...

Answer 3

any major brand. see your local hardware

Answer 4

Any quality tool supply store, just avoid those made in China like the plague.

Answer 5

Most files have been heat treated all the way through. But case hardening just isn't something that gets to the core.

Answer 6

go to Home Depot and ask one of the carpenters for help