$15 at an estate sale, I was definitely prepared to pay more. I've seen people finding such cool stuff at secondhand shops and had no luck myself, so I'm hoping I can get some life out of these.
Also got a plane (one of the adjustments doesn't work but otherwise looks decent) and a Heath Kit power supply.
do you sharpen them? and if so do what process do you use?
Usually you want to check if every tooth is bent to the same angle left or right, and then sharpen each one with a file. But maybe that's a "grandpa's process" and there's a better way
That sounds like roughly what I saw in a video, but this is my first attempt so I'll see how it goes.
This looks super detailed. Of course, I couldn't say if the guy is confidently bullshitting us, but it looks like he knows his stuff https://youtu.be/7UEAoh2I1Lk