BLADE DIAMOND 14" MONSTER ASPHALT OVER CONCRETE. These cut-off blades provide users with excellent performance and faster cutting speed. In addition to a longer service life due to its unique diamond matrix formula in the entire segment. It is made of a very high quality material that is heat treated to ensure greater durability. It also features undercut protection and a three-segment design. Because of this, it is ideal for use on wet or dry surfaces.