How do you make a rounded corner on a Granite Counterop?

[PTucker]

How do you make a rounded corner?  I need to make a 3 inch radius corner on granite surface.  What special tools are needed?

[Mark D.]

Use a brazed drum wheel. For instance, if you are making a rectangular sink with rounded corners, cut the straight cuts, plunge cut to connect the adjacent straight cuts at a 45 degree angle. Then use this drum wheel to grind the truncated corner back to the rounded shape you want.
http://www.defusco.com/58%E2%80%9D11-brazed-drum-coarse-p-2228.html

Once you have your shape use a variable speed grinder and these polishing pads to get your shine:
http://www.defusco.com/diamond-polishing-pads-backers-diamante-italia-dry-resin-polishing-pads-full-set-c-25_30_652.html

When finished, don't forget the sealer:
http://www.defusco.com/tenax-impregnator-and-sealer-liter-p-2095.html

Glad to be of service,
mark