Back when we ran stel edges, I had a friend who plowed for the local town,and they chnged edges every storm. He wuld give me his takes offs, usually they would be at least 5-7" wide. They were free, and lasted me at least 3-5 events. I was running a trip edge fisher at the time, and I was oly able to wear the edge to about 4.5 " till it needed changing.
Dino