Sold as 2 UNITS at $20.69 per unit. (1 unit = each.) Use with M12 HACKZALL recip saw - SKU # 2198158. General purpose set. 10 piece set includes:. 2 wood blades (Ace #2202281). 3 EMT blades (Ace #2202778). 2 duct blades (Ace #2202786). 3 pvc blades (Ace #2202987). Storage pouch. Thin kerf for up to 35 percent more cuts per charge. Short blade length for cutting in tight locations. Bi-metal construction for increased tooth durability and blade life. Carded . Manufacturer number: 49-22-0220. SKU #: 2206456. Country of origin: (TBA). Distributed by Milwaukee Electric.