I bought a metal cutting tool recently that just blows me away every time I use it. It is a Steelmax metal cutting circular saw. I got it on eBay, thinking it might be OK but not really expecting much. When I tried it out, I couldn't believe how well it worked. It will rip through a piece of 3X1/4 channel almost like a regular circular saw cuts a 2X4, and the cut is clean, burr free, and cool to the touch as soon as you finish. It will cut up to 5/16 thickness, and up to 2.5 inch depth (like pipe or tubing). Not sure how long the blade will last, and they are a little pricy (about $40) but I think well worth it if they last a decent time. Several companies make a saw like this, and they even have one from Harbor Freight that comes with a blade for $99. Some of you may want to check these things out.