>2---2X12 stones. That was a real heavy duty >grinder. Years ago I worked for Norton...albeit at a Ceramics division R&D center just outside of it's hometown of Worcester. One of the "legendary" products is a grinding wheel made special order for one customer -- I believe they where a structural steel foundery. That it's a 48" wheel wasn't so extraordinary... It's that when the customer uses them against whatever it is they're making, they get 2-1/2 cuts per wheel. Then chuck it in the junk pile and mount a new one. Didn't use too many of them...but the salesmen smiled when the order came in. Niche product essentially made short-line on a production line and they paid for it. Though I wasn't involved with the abrasives & ceramics technology (I'm computers), it was a fascinating place to see what could be done with that stuff and how far beyond "normal" thinking about ceramics you could push stuff. Some of the failures where interesting, too!
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