Sold as each. 7-1/4" x 4T. PCD tipped - formulated to combat fiber cement for exceptionally long cutting life. Laser cut stabilizer vents - trap noise and vibration and stabilizes the blade for quieter, cleaner cuts and less dust. Unique triple chip grind - designed to maximize life speed and durability in fiber cement. Up to 50% less dust. Manufacturer's number: D0704DH. Country of origin: Italy. Distributed by Freud Usa, Inc. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.