What is M2 tool steel?

      The M2 steel is a high-speed tool steel. It’s the kind of tool steel that retains a lot of its hardness and toughness at red heat. That means when you have a tool made with this steel, the tool can cut at high speeds even if it becomes red-hot due to friction. Nowadays, it’s more known as the high-speed steel that’s replacing the formerly popular T1 steel. That’s because the M2 is a lot better in terms of bending strength, thermo-plasticity, and toughness.