I threw a 50 Pack of these on a Order a couples of months ago because they were Dirt Cheap. And Didn't care at that Price if they Worked or Not.
$2.18 Pre-Coiled Wires for RBA RDA RTA Rebuildable Atomizers (50-Pack) 50-pack - 29 AWG / 1.5ohm / 0.3mm dia. / 15*15mm leads / 7 loops at FastTech - Worldwide Free Shipping
I have to Say, they Work like a Charm. Ohms are Consistent. And Each coil is Exactly like the Next Geometry-wise. I have since bought a 50 Pack every time I do an Order.
I still wrap my own coils Occasionally. But Most of the Time I just pull out one of these Pre-Coiled coils and away I go.
ETA: The Link I posted above is for NiChrome Coils. That is what I like to use vs. Kanthal.