Magnet Wire, Enameled Copper Wire, 40 AWG, 4 oz, 8304' Length, 0.0034" Diameter, Natural

Excellent quality. For someone who uses it for micro trace repair on circuit boards, there is no way you could even come close to using an entire roll in your lifetime. I use it to repair the finest of traces - sub-layer iphone traces that have been severed due to long screw damage. They work great, this wire is almost exactly the thickness of the traces I repair with it, though I wonder if the even thinner roll would have been easier to use. This wire is so thin, it's hard to say if the added difficulty of using an even thinner wire would outweigh the benefit of reduced thickness or not. All in all, it works great for what I need it for, and even though it felt a bit pricey, it has already paid for itself many times over, and as long as I don't lose it, I wont ever need to buy more.

Great price for projects

I bought this wire planning to crochet with it but I didn't realize how fine this gauge is. It's virtually invisible, like a hair, and it breaks too easily to crochet with. It's beautiful though, so I'll figure out something beautiful to make with it.

Unspooled quite a bit of this and never experienced a break.

Under my microscope this wire appears to be the same diameter as one of my hairs.

Got exactly what I wanted.

While most of the way through a 1400 turn winding, the wire snagged at the end of the spool and broke off somewhere down in the layers of the spool. The end can't be found so now I will be finding another source of this wire to finish the job.

Good product