"-MIKE-" wrote:

I keep reading this in this newsgroup.
I want to caution everyone about cutting through foam with blades.
Maybe I'm wrong, and I certainly don't know the science behind it,
but
in my experience nothing will dull a cutting blade like cutting
though
foam.

I've never had a problem, but the local hardware has a stack of 7-1/4
carbide blades.

$5 each on an exchange basis.

Since breaking down ply sheets is about all I use a circular saw for,
it should not be a problem.

Lew