It is mainly the difference in the production process. Different processes lead to different costs and accuracy.
What is a stamping terminal?
It uses Stamping Press and mold to transform iron, aluminum, copper, and other plates and heterosexual materials into a certain shape and size. Punching, blanking, bending, coining, embossing, and flanging are all stamping techniques used to shape the metal. You will see how the stamping connector pin produced in the below video:
What is the lathe terminal?
It is a terminal machined by a lathe(machine tool). Its main feature is precision, the tolerance can reach plus or minus 0.01mm, or even more accurate, and the price is relatively high. Here is a video of how CNC machining hardware:
The stamping terminal is more popular in the automotive market. If you have a sufficient budget and a very high requirement for precision, you can choose the lathe terminal.