Hi Steve,
Find a thing called a "nibbler". It is a hand operated device like a
pair of pliers, but with a cutting action a bit like a punch press.
With a small amount of practice, you can cut quite square corners with
it, and no distortion, or at least a minimal amount.
Regards, Ian Kirby.
Wollongong NSW Australia
Steve B wrote:
I am going to do some decorative work with thin copper sheeting. When you
get into the really thin stuff, like about as thick as matchbook paper, is
there an easy way to accurately cut it? The pieces would be cut at right
angles. I know I can use snips, but that leaves a slight ridge, and I never
can get a really straight cut. On some decorative items, I will just have
to use snips of various sorts until I get the right combination.

Would a heavy duty paper cutter do the deed? Might still leave a small
ridge, but that could be hammered down. Anyone have any experience with
this?

Steve