The EC/UP121-IC Replacement Knives from Freud Diablo Tools are designed for use with the EC/UP121-IC cutter head. These high-quality knives are made from premium carbide, ensuring exceptional durability and cutting performance. Each knife is precision-ground for a clean, smooth finish on various materials, including hardwoods and softwoods. With easy installation, these replacement knives allow for quick changes, minimizing downtime in your woodworking projects. Ideal for professional woodworkers and hobbyists alike, they provide the reliability needed for consistent results.