How to cut a rectangular hole, smaller than 1", in sheet aluminum?

[Ironman]

Originally Posted by johnyradio

i'm looking at the following el cheapo files, but i can't tell their grade. Any thoughts?

http://r.ebay.com/vBJkU4

http://www.harborfreight.com/12-piec...-set-4614.html

Originally Posted by Roundrocktom

I use a Klein Tools Nibbler

Klein Tools 76011B Nibbler Tool

http://www.amazon.com/Klein-Tools-76...ywords=nibbler

Tom, the Klein has a 1/4" kerf...to big for his application.

Johny, any file will work on aluminum, I would get the least expensive ones