Vlad is 100% right. Most razors can be polished and cleaned up by hand without having to worry about ruining the edge and the time difference isn't really that great as long as you have the correct polishing equipment. I've used the dremmel but I also stay away from the edge because it doesn't take much.

A couple months ago I was working on an Eboy special and I had gotten it just about perfect scales and all but I just had to use the dremmel to make it better and just as I was about to finish it up my son inadvertingly hit my arm and you know the rest of the story. That was a $40.00 razor almost completely restored in the trash now.

And don't forget when you use that dremmel ALWAYS use good eye protection because if that edge breaks off its like a magnet to your eyes.