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As an old German friend would have said "crazy in the first place, and stupid to end with" Carbon steel went out with the dinosaurs, and the commonly used carbon steel of that era was not just a straight carbon steel, it was the English "Mushet Steel", which turned out to be an early HSS; F.W.Taylor did extensive experiments on the "Art of Cutting Metals" in the 1880s- 1890s and accidently overheated a Mushet tool to near the melting point, they thought that they had likely ruined the tool, but ground it and found that it could be run at about twice the normal speed without failing as would the normal heat treatment provided; this was the birth of what we now call High Speed Steel.