I have a Fairchild Model 950 bench grinder.

I am looking for a 4 1/2" (four and a half inch) grinding wheel with a 1/2" (half inch) arbor and a thickness of 1/2 inch.

Medium coarse wheel is best but willing to consider additional wheels (rough and fine) if available.

I CANNOT use the thin wheels designed for a right angle grinders.

Thanks for any help :-)