I dont know if this is a good thread to ask this in or not.. but since David mentioned the chipped hones:
Has anyone tryed to re-cut a chipped/broken hone ?
It would seem like you might be able to do it with your tile/masonry saw and the right blades...

Just a random though...

I guess if you dont have a proper blade it would be more cost effective to just replace the hone :lol: