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. M12 HACKZALL® blade 10 piece general purpose set-includes: 2 wood blades, 3 EMT blades, 2 duct blades, 3 PVC blades, and a storage pouch.