Alpha Professional Tools is excited to introduce the Alpha Katana. This blade is the ultimate dry cutting diamond blade for the professional tile contractor. Engineered to be the only blade you will need for cutting all materials, such as porcelain, granite, marble, engineered stone and glazed ceramic tile. If the job entails cutting porcelain for an entire house, or various materials on one job, attach this blade to your Alpha Wet Stone Cutter or popular angle grinder.