I am on the fence between these two models. I see very good things written about both and few negative comments about either. I lean towards the Powermax at this time but I need some more convincing. I will be using the cutter in a farm / ranch operation (rusty metal). I realize that a clean ground location is a MUST for cutting rusty metal. Mainly 1/2" or less thickness but there may be times I need to sever 1" or greater. I want a unit that can possibly see future use on a CNC machine (1/2" cuts or less, possibly heavy use). I also want long consumable life.