It will do fine with any steel, I have the yellow (1000 grit) ultra fine and the blue sapphire stones. Keep in mind, don't put too much pressure on the stones, they will take off more metal than the conventional stones with the same pressure applied. 14C28N is super easy to get a hair popping edge with the diamond stones. I always use a sharpie to mark the angle to ensure the apex of the blade is achieved. The Lansky does have some play on the slots for the different degrees of angles.