Upgrade your serger with the New Upper Blade H004131! Perfectly compatible with ELNA models 604E, 614DE, 624DSE, 644, 704E, 704DEX, 714DE, 904, 904DCX, 905, 905DCX, 925DCX, 945, PRO4, PRO4DC, PRO4DE, PRO5, PRO5DC, PRO5DE, and PFAFF models 4842, 4852, 4862, 4872, 4874. This high-quality replacement, also known as part 396001-60, ensures precision and durability for flawless stitching. Elevate your sewing game today! ==== FEATURES: ==== Introducing the Ultimate Upper Serger Knife Collection - Precision, Durability, and Versatility in Every Cut! (A) **Precision Engineering for Flawless Cuts**: Our Upper Serger Knife is meticulously crafted to deliver razor-sharp precision, ensuring every cut is clean and accurate. Whether you're working with delicate fabrics or heavy-duty materials, this knife glides through effortlessly, making your sewing projects smoother and more professional. (B) **Unmatched Durability for Long-Lasting Performance**: Built to withstand the rigors of continuous use, our Upper Serger Knife is made from high-quality, hardened steel. This ensures it remains sharp and effective, project after project. Say goodbye to frequent replacements and hello to a reliable tool that stands the test of time. (C) **Versatile Compatibility for Seamless Integration**: Designed to fit a wide range of serger models, including Elna PRO4, PRO5, 905, 925, 945, and Pfaff 4842, 4852, 4862, 4872, our Upper Serger Knife #H004131 offers unparalleled versatility. This universal fit means you can easily upgrade your serger's performance without the hassle of searching for model-specific parts. Elevate your sewing experience with the Ultimate Upper Serger Knife Collection - where precision, durability, and versatility come together to transform your creative projects!