The characteristics of precision molds are that the products are relatively small, and the accuracy requirements for the products are very high. For long-term production, the quality of the steel required for this type of mold will be better, preventing flashing and other phenomena after mold processing for a period of time. The biggest difficulty of the mold is the accuracy requirements of the mold, if made into a multi-cavity mold, the precision control of the product punched out of each cavity will be the biggest difficulty, in the mold opening process, it is easy to waste steel and time due to precision control errors.