Granite, Hard Brick, Refractory Brick ; this tool is also know as The Tsunami, The Blue Revenge; Blue Thunder, and various other names throughout the industry. This is the same blade labeled by others with different names, but is exactly same manufacturer. It is the Soft Bonded Combination Supreme Blade of its kind. With Alternating Segments; 10mm - 15mm seg, drop segements. This is a great blade - but lessor quality then the SHOXX series. *ask account manager for more information.