1. The steel core is made of heat-treated alloy steel. Sintered diamond saw blade, high density and high hardness. It achieves faster cutting speed and longer cutting life in different materials.2. Masonry diamond saw blades feature a wavy design and a heat-treated steel core increases airflow, reduces friction and allows air to be drawn in during the cut, keeping the blade cool.3. The diamond blade is suitable for for cutting tile, marble, brick, concrete, ceramic and porcelain. Great for DIY projects, home maintenance and home use. This blade is suitable for handheld angle grinders, circular saws, tile saws.4. Pay attention to the installation direction of the cutting disc. Follow safety signs before cutting work begins.