Clean the granite countertop. Remove any dirt or dust on the surface with a damp cloth and let the surface dry.
Mark the area where you'll cut the granite, using a felt pen. Cut the granite with a diamond-tip saw with water-cooling system. Move the saw in a straight and steady line. You can also use a lubricated diamond-tip blade instead of a water-cooled one if you don't want to wet the area around the granite. Support the part of the granite you are cutting off so it doesn't fall and damage the floor or hurt someone.
Smooth the edges of the cut portion if the granite countertop. Move the grinder over the edges of the countertop to even it out. Wipe the granite with a damp cloth to remove all the granite dust. Wait for the countertop to dry.
Apply a commercial granite polish to the countertop surface. Make sure that the polish isn't abrasive. Spread and rub the liquid on the countertop with a soft sponge. Then take a dry cloth or a microfiber cloth and buff the surface. Also buff the granite by applying a mixture of rubbing alcohol, warm water and mild detergent with a spray bottle. Rub the granite in circular motions with a cloth.
Things You Will Need
- Felt-tip pen
- Power saw with diamond tip
- Handheld grinder
- Commercial granite polish
- Baking soda
- Rubbing alcohol
- Liquid dishwasher detergent
- Spray bottle
- If the granite that you are cutting is already installed in the kitchen, make sure that the area around the granite countertop is clear and furniture or appliances won't get in the way while you cut. If the granite is not yet installed, mount the granite countertop on a stable table or working horse. It is best to cut the granite in your workshop or garage.
- If you are moving a granite countertop, always hold it sideways because its own weight could break it in half if you hold it any other way.