I have numerous power tools that will cut thru HC, angle grinder and dremel tool with cut of discs get used often, but not for this....I just found the snips I used to be the best for the closest cut to welds while also controlling the material. Was working alone 95% of the time..an extra set of hands might have had me using a different tool
PPE....1 glove on snip hand, for blister avoidance, actually pushed snip closed against the floor; knee pads, that floor is hard and my knees are shot; already wear glasses.
Snip side knee holds roll end down, non-snipper hand lifts piece being cut off making way for snips and hand.
You can see on My Coop page how big the pieces are that I was cutting, bending and installing..many were 16' long. The eave pieces were also bent twice before installing, I did have help installing those.