Designed to maximize the cutting performance of the 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. blades, 5 pack ---- 1. Since it is imported overseas, even if it is brand new, there may be some damage to the package, but please rest assured that this does not affect the product. 2. Product **and other products made in Japan are not applicable. 3. Packaging and instructions are in English.