Grinders use diamond discs or pads to grind and hone the concrete. There are multiple types of diamond discs that are used in progression to shape and smooth the concrete... There are many types of diamond blade, and they have many uses, including cutting stone, concrete, asphalt, bricks, coal balls, glass, and ceramics in the construction industry; cutting semiconductor materials in the semiconductor industry; and cutting gemstones, including diamonds, in the gem industry.