What's the most common MISTAKE newbies make while sharpening a chainsaw chain?

[northmanlogging]

The back drag thought had been shot down numerous times and yet here we are debating it again and again


Don't get to machine much aluminum on heavy duty diesels. Files were a tool that wore out, when it was junk it was junk. None of the machinists would back drag files but none of them had files that lasted for years either.

hastalloy, Inconel, 316, 304, 440 stainless, lots of various chrome molly steels, not just aluminum.