Designed to maximize the cutting performance of the new M12 Hackzall Reciprocating Saw, these blades feature a thin kerf design that reduces the amount of drag and resistance while cutting, resulting in more cuts per battery charge. Specialized blades are available for a variety of HVAC, electrical, plumbing and maintenance/repair applications. What's Included: 2 wood blades, 3 EMT blades, 2 duct blades, 3 PVC blades, and storage pouchThin kerf for up to 35 percent more cuts per charge versus leading reciprocating saw bladesShort blade length for cutting in tight locationsBi-metal construction for increased tooth durability and long blade lifeDesigned to maximize the cutting performance of the new M12 HACKZALL reciprocating sawVarious blade types for a range of cutting needsMatrix II bi-metal teeth for greater durability1/2 in. universal tang fits all SAWZALL