I use a big lead hammer on the concrete floor, and a sharp knife. I lay the AN line on the lead, and then a sharp knife on top, and cut it with just one hammer blow, it will make a nice clean cut. The braided steel, will need some massage to get round again.
I learned this method from a Top fuel racer.
I have heard cutting with a 1mm super thinn cut off wheel, also works great. Never tried a plier tho.