Nealm66
Minister of Fire
I worked with an old guy who was actually in a rainier beer commercial right before the spotted owl that could touch up a chisel ground chain very well with a 3 corner file. Was working in st Hellen’s ash and the only time I’d say it was productive to hand file falling timber. I tried it a few times just out of curiosity but it was horribly bad even though I had a good understanding of what was needed. He worked the file opposite of round filing like the direction of the grinder wheel and was just a couple strokes to clean up the dullness caused by the ash.