This is one of my favorite tools. I own at least two of these nippers. The difference between these and every other cutter is that they are drop-forged and they’ve got some specific hardening at the tip. They cut through everything. I’ve snipped through quarter inch bolts with these. I can cut the bane of all cutters — piano wire — all day long and these will never be marred by it. I have ruined so many other tools by cutting the wrong wire or nails. There may be other brands that do this, but this is the one I’ve been using for 20 years. The Knipex are expensive – they’re about $60 a pair — but it is one of those classic examples of how you can ruin a couple of pairs of something else and you’ve paid for these. I’ve never had these fail.