Ted, I think that Weber actually used a stain which is difficult to remove. I would think without an orbital sander or maybe a palm sander trying to do it by hand would be tedious to say the least. There was a thread here from years ago posted by Chris A of a restore that a lady did and Chris posted her pictures in a thread and if I remember she had the gray slats sanded them and bleached them or something so she could use a spar or oil and leave them natural, maybe someone knows where that thread is.
The axle as Bruce said can be done with a drill and multiple grades of sandpaper and it must be sprayed with something or it will rust pretty quick after your done. There is a picture in my thread on the finished results actually doing one for a Performer today or tomorrow. I think the mistake I made as I finished it off to begin with was 400 wet sandpaper when I just should of used it dry left it for a few days and it started to rust immediately but just stuck it back in the drill again using 400 dry and it cleaned up in a few minutes, wiped it down with Acetone and put three coats of clear on it.
Of course as someone in my thread said you could buy a new piece stainless from MC for under 12 bucks and be done with it but I was doing this for a friend we were trying to re-use everything.
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