The characteristics of carbide tools and high-speed steel tools are
(1) High-speed steel tool: sharp blade, poor rigidity, soft and difficult to break, easy to wear, cheap, and not enough machining accuracy, mainly used for workpieces with low hardness of materials.
(2) Carbide tool: hard and brittle, high temperature resistant, mainly used for machining workpieces with high hardness. Cemented carbide tools are not resistant to impact, so they need to be processed at a high speed, otherwise they are prone to chipping. According to the characteristics of high-speed steel, it can be used in the following situations: ①When high-speed machining cannot be performed; ②When the rigidity of the machine tool is poor; ③When the tool cost is expected to be cheap; ④When machining accuracy is not required.