http://www.harborfreight.com/cpi/ctaf/d ... &Submit=Go

Just thought I'd let others know that it works great.
I have punched out 3 holes in a friends 7A and tonight I punched out my cabin heat box hole on my 8's firewall.
It punches the hole with ease and only leaves minor nicks that are easily buffed out with a scotch brite wheel attached to a die grinder or dremel tool.
Here's a pick of my 8's firewall after using it.

