There are some types of wire that will destroy the edge even on so-called ‘hard-wire’ cutters. I work in vehicle logistics, and often a car would arrive with both keys held together using a rectangular wire ‘loop’ with the open ends, which have hooks bent into them, pushed into a plastic lock. We used to have to separate the keys for certain security purposes, and breaking that wire was a nightmare! Bending and twisting it often resulted in a sharp snapped end stabbing a finger, so I tried some regular wire cutters, which got notched first go, then hard-wire cutters, same thing, even a pair of 8” cutters were notched. The only thing that could cut the stuff was my Gerber MT800 multitool, the replaceable cutters on the pliers are tungsten carbide, and chopped straight through.
I keep meaning to get a pair of these edge cutters, partly for my toenails, but mainly for zipties, as a couple of people have said, the cut ends are bloody sharp!
