Ya, my bad, Im looking at too many things. Im a machinist; and the pure carbides we use will eat any wheel, other than diamond. I dont think the concrete bits use that high of quality probably. So that probably is feasible, or you have some sweet ass wheels.
Its funny cause we were sharpening tools today and the grinder ate up every M-42 or HSS tool we had, no questions asked. But we saved the single carbide center as the last job. It ate a 4inch wheel to ~3.5inches before it put a 60* point on the tool. haha