Just wondering why there are no CBN wheels finer than 1200 grit? Is there another alternative that doesn't need truing and won't change diameter?
There are resin-bonded CBN wheels in grits up to 10k. They will change diameter over time, but very slowly and by a very small amount. And of course they are pricey.
https://www.amazon.com/Resin-Grinding-Tormek-Sharpening-System/dp/B0BS9GY6HJ?ref_=ast_sto_dp
Thanks! Just what I was looking for.