I dunno, seems kind of expensive to me, then having to work on it too? 

https://www.fasttech.com/products/0/10005662/1541800-stainless-steel-chaos-style-510-drip-tip
This is the one I use. I did have to file down the edges though, so it does take a bit of work to make it perfect, but for $2.81, it was worth it to me.
You can see it in my avatar.