After successfully installing the new cell in out battery the manufacturer wanted pictures of the failed cell so I got to cut it open and see what was inside :) Then I got started cutting up materials for our new shop/garage and temporary 'apartment' building. We used a Diablo Steel Demon blade to cut the 4 inch 11 gauge square tube. I'm liking the Markal Silver-Streak pen, not a big deal, but it is a little better than soap stone.