10 Best Fishing Knives 2025 in the United States

The KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife is a high-quality fishing knife designed for efficiency and ease of use. It features a powerful high-torque motor that makes filleting quick and smooth, regardless of the fish size or species. The knife includes 420 stainless steel blades with a titanium Vapor Deposition coating for durability and corrosion resistance. The pack comes with four different blades (7" and 9" Finesse blades, 9" Talon blade, and 12" Talon blade), providing versatility for different filleting needs.

The ergonomic Thermoplastic Elastomer (TPR) handle ensures a firm, non-slip grip, reducing hand fatigue during extended use. One of the standout features is its extended battery life; the 12.6v lithium-ion battery provides up to 1 hour and 40 minutes of continuous runtime, and the pack includes two batteries for uninterrupted use. The custom-molded EVA carry case is a convenient addition, making it easy to store and transport the knife and its accessories.

Users will appreciate the power level display and overcharge protection features that ensure battery safety and longevity. However, the knife's weight (4.07 pounds) might be a bit heavy for some users, and its larger size (16.5 inches in length) may not be ideal for those looking for a more compact option. This knife is best suited for avid anglers who require a reliable, high-performance fillet knife with the convenience of cordless operation.

The Buck Knives 191 Buck Zipper is a well-crafted hunting knife featuring a 4-1/4 inch drop point blade made from 420HC stainless steel. This blade material is known for good edge retention and resistance to rust, which is important for outdoor use. The integrated gut hook is a standout feature designed to make field dressing game quicker and cleaner, much like a zipper, which can be very handy for hunters and those processing fish. The blade’s shape and length strike a nice balance for detailed slicing and tougher cutting tasks.

The handle is made from DymaLux walnut, offering a comfortable, secure grip with a classic look enhanced by brass accents. This wooden handle feels sturdy and balanced in hand, helping with control during use. Additionally, the knife includes a quality leather sheath with a snap closure and belt loop, making it convenient and safe to carry in the field. Weighing 6.3 ounces, the knife is light enough for everyday carry without being flimsy.

This model has been discontinued, which might affect availability and price. While 420HC stainless steel is good for corrosion resistance, it may require occasional maintenance to keep the edge razor-sharp and free from rust, especially in wet environments. The Buck Zipper’s simple, reliable design and lifetime warranty reflect Buck’s commitment to quality. It is best suited for hunters and outdoor enthusiasts who need a practical tool for skinning and field dressing rather than a specialized fishing fillet knife. If you want a sturdy, versatile fixed blade with a gut hook, this model is a solid choice, though checking current availability is recommended.

The KastKing Bait Knife and Fillet Knife with a 9-inch blade is a versatile tool designed for various fishing and food prep tasks. The blade is made from G4116 German stainless steel, known for its sharpness and durability, making it effective for both fresh and saltwater applications. The non-slip super polymer grip ensures safety and comfort during use, which is essential for handling slippery fish.

It comes with a protective sheath that securely locks the knife, with drainage slots to keep the blade dry and sharp. This thoughtful design enhances both safety and maintenance. Users have praised its sharp edge and flexibility, making it suitable for filleting fish of different sizes and for steaking large game fish like salmon and tuna.

While the stainless steel handle is durable and easy to clean, it may not be as comfortable for prolonged use compared to softer materials. The knife is also lightweight, which can be both a benefit and a drawback depending on personal preference. Another consideration is that the knife is hand wash only, requiring extra care to maintain its condition. If you need a reliable and sharp fillet knife for fishing and food preparation, the KastKing Bait Knife and Fillet Knife is a solid choice, although you may want to consider how the handle material aligns with your comfort needs.