I do not restore, I refurbish.
I remove the rust with a soft wire wheel which preserves patina, give it oil where it needs it, then put it to use. If I wanted a brand new looking tool I'd buy a brand new tool, but I like 'em honest with patina.
Many many YouTube videos showcase what they're calling a restoration when it's not, most often they're removing the patina and polishing up a tool that never came polished to begin with.
They think everything has to be brand new looking.