hii Jim,,,,,I read your article from a while back just now ,you ve probably already have your problem solves ,but here is what I would do.... one mark your line where your cut should be, 2,, take your punch and mark it all the way down to the bottom to the top about a half inch between punches ,.Keep in mind that you are dealing with some very difficult kind of steel ,I think if you heat your steel up to try to cut it with a torch you might compromise the steel ,some types of steel require you to heat it up to certain temperature to start your cut, I don't know what you have, but if you are interested you can write me back and I will tell you how to determine what you have. take your big matobo grinder with a 7 inch blade on it ,please wear your safety gear ,,,,,leather gloves any style safety glasses, and a clear grinding shield, hold your matobo where the cuttings and heat are going away from you ,follow your punch marks, its very important that your first quarter inch is even and straight. Continue cutting and let the weight of your matobo do the cutting, your blade will last so much longer, I don't know how much you have to cut but if you can have someone with you and let them hold your piece that you are cutting off ,so it makes it easier to hand and you don't have to worry about your blade cracking or exploding, the take your grinding wheel and round off or feather your blade back so it matches the rest of your blade ,I would coat your cut with a heavy red primer, let it dry until you can use it I hope you get your job done with speed and accuracy have a great day LARRY
