Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How do I grind the concrete properly when making a concrete countertop>
keep your grinder as flat as possible on the surface, especially with the rougher grit pads. . Continue grinding until you have the desired aggregate exposed
Use a diamond blade saw and a power grinder for smoothing. Wet the surface while grinding.