Premium Tile and Porcelain Diamond Saw Blades feature a sintered, J slot diamond blade rim design to consistently deliver fast, smooth, chip-free cutting. Premium Tile and Porcelain diamond saw blades are durable and provide extended blade life for wet use applications. The J Slot Diamond Blade is a Premium Tile & Porcelain Saw Blades are used with angle grinders, circular saws and tile saws for cutting ceramic tile, porcelain tile, marble and granite. Wet use. 14″ Perfect for Blue Ripper Machines