M2
High-speed steel M2, also known as HSS M2, is a type of tool steel renowned for its high wear resistance, hardness, and ability to maintain cutting edges at high temperatures.
M2 high-speed steel tends to be more expensive than standard tool steels due to its higher alloy content and superior performance characteristics. Overall, M2 high-speed steel is favored in industries where cutting tools require exceptional hardness, wear resistance, and heat resistance to maintain performance in demanding machining operations.