A fillet knife is a specialized kitchen tool designed for filleting fish and other delicate meats. It features a long, thin, and flexible blade that allows for precise cuts along the bones and skin. The flexibility of the blade helps to separate the meat from the bones without tearing, making it ideal for tasks like preparing salmon or trout. These knives typically have a comfortable handle for a secure grip, which is essential for maintaining control during use. Fillet knives come in various sizes, catering to different types of fish and personal preferences. Proper care, including regular sharpening, ensures optimal performance and longevity.