but a silicon carbide wheel is good for carbide.
Not as good as diamond, but good enough.

I tried some norton silicon carbide wheels on my baldor carbide
grinder. They will cut, but I ended up with lots of tiny chips
in the edge. I got a cheap diamond wheel from enco and it is
like night and day difference! The glendo with a 1200 grit diamond
wheel is awesome. I usually only use the 600 wheel for carbide though.