"Ignoramus25707" wrote in message
news
I have a bunch of street plate steel, that I want to magically
transform into welding tables.

They have rust on them, it is not horribly deep, but it needs to be
removed.

What is the most efficient way to do it using, say, a 9 inch angle
grinder. What abrasive things are best for it?

If you still have that Tenant floor machine, this might work.

http://www.malish.com/dmb/diamabrush...ep-system.html