I'm kinda stoked about our new toy in the shop. Thermal Dynamics CUTMASTER 101. It's the nice one. It will cut up to 1 1/2 inch mild steel. Cuts through stainless, mild steel, brass, copper, aluminum, cast iron, ductile iron, every kind of metal we could find. Cut's 3/4 inch steel like butter, and I cut through a 1/2 thick walled cast iron pipe no problem. It's fucking badass. I love my job.