Thread: When to move one from 4K level

Originally Posted by MODINE

Maybe someone already mentioned this, but if you are using a Norton 4 white side/8 yellow side, one way to know when you are done with the 4K white side is that steel will not be releasing or darkening your stone or your water. That indicates that you are done on that size grit and it is time to progress to a finer grit. No microscope required. Good luck sir.
Mike

I've noticed that as well.

As simple as some may think, more than one guy has mixed up the sides of the 4/8 Norton or any un-marked combo stone.
Mike