
Diamond blades have segments made from a sintered mixture of industrial diamonds and metal powders, which are brazed to a steel disk. They are generally used to cut old concrete, asphalt, and green concrete containing the harder aggregates. Diamond blades must always be used wet. Many grades of diamond blades are available to suit the conditions of the job.
Twelve inch diameter diamond blades are the most popular size. This size makes a cut about 3 1/4 inches deep. Larger size blades are used for deeper cuts.