Upgrade your sewing game with our Brand New Set of Upper and Lower Knives Blades, perfectly compatible with BERNINA and BERNETTE Overlock Models 003, 004, and more! Precision-crafted for models like 004D, 800DL, 1300MDC, and Juki MO-654DE, these blades ensure clean, professional cuts every time. Say goodbye to frayed edges and hello to flawless finishes. Part numbers 50143403 and A4142-335 included. Elevate your overlocking experience today! ==== FEATURES: ==== Introducing the Ultimate Cutting Edge: A Brand New Set of Upper and Lower Knives/Blades for Your Overlock Machines! (A) **Precision Engineering for Flawless Finishes**: Our Upper Knife #50143403 and Lower Knife #50145403 are meticulously crafted to deliver unparalleled sharpness and durability. Designed specifically for BERNINA BERNETTE OVERLOCK MODELS 003, 004, and JUKI MO-300, MO-623, MO-634D, MO-644D, MO-654DE, MO-655, these blades ensure every cut is clean, precise, and professional. Say goodbye to frayed edges and hello to seamless perfection! (B) **Effortless Installation and Compatibility**: Swap out your old blades in a snap with our user-friendly design. These knives are engineered for a perfect fit, making installation a breeze. Whether you're a seasoned pro or a sewing enthusiast, you'll appreciate the hassle-free setup and the immediate improvement in your machine's performance. Compatible with a wide range of models, our blades are the versatile upgrade your overlock machine has been waiting for. (C) **Long-Lasting Performance and Reliability**: Crafted from high-quality materials, our knives are built to withstand the rigors of heavy use. The superior construction ensures that they stay sharper longer, reducing the need for frequent replacements and saving you time and money. Trust in the longevity and reliability of our blades to keep your projects running smoothly, stitch after stitch. Elevate your sewing game with our top-of-the-line Upper and Lower Knives/Blades. Experience the difference that precision, ease of use, and durability can make in your overlock machine's performance. Upgrade today and cut through your projects with confidence!