I normally use my band saw, but did buy a abrasive chop saw for hard metal (things that take teeth off band saws, and for use on the welding truck, (just around the farm)
and I bought a Dewalt, (would have to look at the unit to get the number) but I have not had any problems with it not cutting straight,
and would recommend it to any one that had interest in one, plenty of power and easy to use, (yes it shoots sparks, and grit all over the place),
on a cut off saw, you operate opposite of a band saw,
on a band saw you usually try to cut the widest section (part of that is to support the teeth on the blade), on a cut off saw you normally try to cut the thinest section, the abrasive blades have much more problems on wide thick cuts,
so a flat iron you cut the edge on an abrasive saw, and band saw you cut the wide flat.
support your iron being cut so it does not pinch the blade unless you like blades that look some one took a bit out of them, and at that point they need to be disposed of, as to continue to use will be dangerous if the saw does not walk off the bench do to the out of balance of the blade,