Does this corrode or tarnish?

Yes... No... Depends...

Where do you plan on using this? If it is somewhere sort of seen, then use
white anodized. The corossion on the aluminum will at least partially
match.

It's tough... But it is not ever safe to use where salt is going to be
present.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
http://www.autodrill.com
http://www.multi-spindle-heads.com

V8013