RE: Carbon tool steel
In my opinion there is no better knife blade than one made from plain carbon steel. I don't care about rust. I keep my tools and guns clean. And if it does stain a little who cares? It's a tool.
Super steels, in spite of statistics and testimonies really just come and go. Plain carbon steel has been around for a couple of thousand years. Files are made from simple carbon steels. Edges are edges I've had sharp knives in all types of grinds and dull knives in all types of grind. I prefer the straight flat bevel. It's easier for me to keep sharp.
Ernest R. Emerson