These Razor Edge Shafts come in 4 sets per pack (12 total shafts/stems) and WOW are they awesome!! They're I assume CNC machined? To an extremely high quality to the point where I line them all up and cannot find one flaw. They're made out of aluminium so have a lovely sound if that's your thing. And the razor edge provides plenty of grip support if you're a super rear gripper. Combined with the rubber o-rings (I can't remember if they come with them, so I'd advise ordering a pack of those on top) the stems sit super tight to your barrel, and the o-ring sinks itself between the stem and barrel to the point where it completely disappears, and holds both items together very tightly! I've found using a point of a dart through the shaft hole to tighten up fully works a treat. The tips of the shafts also grip flights VERY well. I haven't had one flight come off when I'm using these shafts.
I take you through this description In the video I have uploaded with this review.
First look at the shafts, look at the shaft with o-ring, then show you an assembled shaft sitting flush with the barrel.
Excellent product! I will be getting more in other lengths, wether it be razor edge ones or another style aluminium shafts! Would highly recommend if you're considering trying out metal shafts.