Anybody Have One Of These?

fishmens67 said
Junk ! a chain destroyer. You can get a good proper angled edge with 2-3 passes with a file and guide.
As a chain wears the rake needs to be filed to get a good cut and good size chips.

Since it looks like you need to pull the chain to sharpen it with this doohicky, I bet a few passes with the file would actually be quicker