Using the Milwaukee 48-40-4320 circular saw blade is straightforward. First, make sure your saw has a 5/8-inch arbor to fit the blade. Then, install the blade securely on your saw. This blade is great for dry cutting various materials like aluminum, brass, copper, plastics, and fiberglass. When cutting, you'll notice it makes clean cuts without burrs, and it doesn't get too hot. That means you can handle the cut material right away and have less downtime. Just remember, avoid using it in wet conditions as it's designed for dry cutting. After use, clean the blade with a soft brush to remove any debris. Store it in a dry place to prevent rusting. With proper use and maintenance, this blade will serve you well for a long time.