How to use wet grinders for concrete .
How to use wet grinders for concrete countertops. Concrete countertops are usually ground and polished wet using a diamond grinder. This article explains how to use a wet grinder/polisher most effectively. Keep it even: Do not use a wet grinder like a highspeed metal grinder. With wet grinders, the whole face of the grinding disc or turbocup wheel should be pressed evenly against the ...