Since fourslide machines have cams and slides built into them, this eliminates the need for the costly, complex tooling of progressive power press operations.Lee spring uses fourslide parts for manufacturing spring and wire forms. It is quite economical and thus it is affordable to but it from it. Earlier manufactures were using complex tools for production, but with the help of fourslide part machine, production process has become very easy.
fourslide parts 
All
All
