- Heat treated tool steel 6150: The piston driver blade assembly is made of heat treated tool steel 6150, delivering exceptional durability. Hardness around 50. - Aerospace grade #2024 Aluminum piston: The piston is made of aerospace grade #2024 aluminum, lightweight yet strong, providing reliable performance. - Compatible with NT65M2 series: This piston driver blade assembly is designed to be compatible with NT65M2 Finish Nailer, NT65M2SM 2 1/2 Inch 16 Ga Finish Nailer With Blow Nozzle, and NT65M2S Nailer. - Construction: Crafted with precision, this assembly is designed for long-lasting use and efficient performance, meeting high quality standards. - Use scenario 1: Finishing trim and molding installations in interior carpentry such as baseboards and door casings, where durable blade life supports steady, accurate nail driving. - Use scenario 2: Cabinetry and face frame assembly, where the lightweight piston reduces operator fatigue while maintaining reliable performance. - Use scenario 3: Remodeling projects using NT65M2 finish nailers, to maximize tool life and minimize downtime with a compatible, high durability replacement part.