I went through some of dad's estate which included a lot of my grandfather's old tools. Here are two homemade tools that I found: a chipbreaker screwdriver and a lathe shaping tool or maybe a profile scraper. I don't think safety was really a top priority if it was a lathe tool. It is still fairly sharp, and appears to have been sharpened for stock removal. I found it interesting.
I will use the chipbreaker driver as my new favorite. I doubt I am going to try the other one.
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