I have used these to cut through 16 gauge sterling, a real powerhouse of a cutting tool.

Love! Cut through threads so easily

These are sharp, durable and inexpensive. They leave a nice, clean edge on sheet metals. These have become a favorite tool and I reach for them all the time.

Authentic, made in USA. I’m using Xuron 9180NS to cut Fireline for jewelry bead projects. I struggled to make clean, close cuts on Fireline with any other tool. Rather than ruining my expensive Wiss scissors (which did not make a clean or close cut), I invested in this Xuron cutter, which is amazing! This Xuron tool cuts through tough Fireline like butter. One snip and it’s a perfect cut! Totally worth the twenty bucks to save your good scissors.

These are really great shears and I almost hate not to give them a five star rating. I got them primarily for electronics, snipping battery tabs and copper sheeting. There aren't many micro shears that can hold up to actually cutting metal and also still be able to use the tips effectively for notching or flush-ish cuts while not deforming the metal terribly. These do great, we'll see how long they last but they seem like they should and will also be simple to sharpen when needed. Grips are grippy and comfortable. And because new shears just make you want to cut everything in sight, I tested them on various things including rubber automotive fuel hose, clear silicone tubing, hard molded rubber tabs about 5mm thick, 8 gauge stranded copper wire, 2mm solid carbon fiber rod (actually did ok), rubber sheet plumbing gasket material, heat shrink tubing, and various sizes of electronic and plumbing solder wire - precision clean cuts on everything and they are stout enough that you can apply considerable side pressure to sort of force some trimming/flush cutting if need be. I would not use these for repetitive metal wire cutting (get side cutters/nippers for that) but they do cut well at least down to 18 gauge copper. The slight negatives are that the spring is a bit stronger than necessary or typical (for electronics bench tools) and also kind of in the way/bulky compared to handle spring designs on other tools - but it isn't horrible. And they really should have either a lock to keep them closed or a good hard plastic molded tip cover. They come with a short piece of flexible pvc tubing like you can get in any hardware store but it stretches out under the handle spring pressure and doesn't really keep them closed or protected. I made a better one with some 1/2" pex pipe and a heat gun. I'll definitely recommend these and will pick up another pair when that day comes.