I need to cut approximately 300 lineal feet of hardware cloth to width to fit various width window openings. I also need cut it into about 40 pieces so I need to make lots of cuts.

I have done this in the past with an ordinary pair of wire cutters. Making 24 or more cuts per foot is slow and hard on the hands. Is there a power tool that I could use for cutting hardware cloth? It needs to be either a cordless tool or a pneumatic tool as I have no power at the site.

Would either an air shears or a die grinder with cutoff wheel work? Other ideas?