How can I make a simple hardsurface shader that works like marmoset toolbag 2?

So I’ve tweaked the textures to try and get a more realistic look and played around with the shader stuff some more. I’m getting closer but still not getting the desired look. The difference between the first shader setup and the second was that the first had a map that was supposed to act like a mask to tell the shader what was metal and what wasn’t, the second setup just had the specular map in both the specular and metal slot(weird thing is that looked better imo but still not what I want).