Since a polished object reflects like a mirror, some of your highlights and shadows will be sharp, and some will be soft, it all depends on what is being reflected. So to soften some of the shadows you may want to use your blending stump. On this object, I see that the more middle grey tones are softer than the shadows, so I used my stump on the top parts of the arm
and the hinge. I also erased some of the highlight areas to really
make the highlights pop.