"I've always cut this wire with a Dremel mini-drill with cutting disc tool. Very quick, and leaves clean, square end - as long as there is no bend in the wire near the cut. (And wear safety glasses!!)"
"I used this wire rope with the aluminium accessories to erect support wires for an espalier apple tree. It's just what I was looking for. It's hard to cut, because it's so strong. I used wire cutters that are really intended for cutting bicycle brake cables, but they are good quality (Shimano), so coped OK."