Definitions for "high-speed steel"
Keywords:  alloy, steel, thatthese, tool, blade
an alloy steel that remains hard at a red heat; used to make metal-cutting tools
A special alloy tool steel which retains its hardness and cutting edge at relatively high temperatures.
Steel that does not soften even at red heat, which therefore can be used in saw blade and other cutting tools at the high speeds and feeding force that generate great heat.