--- product_id: 568466999 title: "KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Cordless Rechargeable Fishing Knife with 2 Blades, High Torque Motor with Extended Battery Life, Ergonomic Handle and Custom Carry Case" brand: "kastking" price: "$203.26" currency: USD in_stock: true reviews_count: 8 category: "Kast King" url: https://www.desertcart.us/products/568466999-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife-cordless store_origin: US region: United States of America --- # High-torque motor for rapid filleting 12.6V lithium-ion battery with 1h40m runtime Dual corrosion-resistant titanium-coated blades KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Cordless Rechargeable Fishing Knife with 2 Blades, High Torque Motor with Extended Battery Life, Ergonomic Handle and Custom Carry Case **Brand:** kastking **Price:** $203.26 **Availability:** βœ… In Stock ## Summary > 🎣 Slice Faster, Fish Smarter β€” Own the Water with Speed Demon Pro! ## Quick Answers - **What is this?** KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Cordless Rechargeable Fishing Knife with 2 Blades, High Torque Motor with Extended Battery Life, Ergonomic Handle and Custom Carry Case by kastking - **How much does it cost?** $203.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/568466999-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife-cordless) ## Best For - kastking enthusiasts ## Why This Product - Trusted kastking brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Premium Blade Duo:** Includes 7" Finesse and 9" Talon flex blades with titanium vapor deposition for razor-sharp, corrosion-resistant cutting edges. - β€’ **Marathon Battery Life:** Cordless freedom with up to 100 minutes of continuous use plus intuitive battery level indicator. - β€’ **Powerhouse Performance:** High-speed, high-torque motor slices through any fish size with unmatched efficiency. - β€’ **Sleek On-the-Go Storage:** Custom slim EVA carry case fits perfectly in boat compartments or travel bagsβ€”ready for your next fishing adventure. - β€’ **Effortless Precision Control:** Ergonomic TPR handle ensures fatigue-free, non-slip grip for flawless filleting every time. ## Overview The KastKing Speed Demon Pro is a cordless, rechargeable electric fillet knife featuring a powerful high-torque motor and a long-lasting 12.6V lithium-ion battery delivering up to 1 hour 40 minutes runtime. It comes with two premium 420 stainless steel blades coated with titanium vapor deposition for superior sharpness and corrosion resistance. Designed with an ergonomic TPR handle for comfort and control, it includes a custom slim EVA carry case for easy transport and storage, making it an essential tool for serious anglers seeking efficiency and precision. ## Description Buy KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Cordless Rechargeable Fishing Knife with 2 Blades, High Torque Motor with Extended Battery Life, Ergonomic Handle and Custom Carry Case: Filet & Bait Knives - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Quality, convenience, and value in a complete package. - A very handy and functional tool. Cordless for convenience. Includes exactly the two blade sizes I need... one suitable for panfish and one for larger fish. The supplied blades were extremely sharp. As others have mentioned, they are a little fidgety to install, but it's really no big deal. They stay put. The included case is very nice! It's quite slim (think of the form factor as being like a large book -- see photo) and there is room inside for doing some custom work to make slots for additional blades if you desire. The fact that it will reportedly accept blades from other brands is a plus, if accurate. The battery has the capacity to very easily handle as many panfish as I usually clean at once (10-15). The battery has a cool "fuel gauge" to read out the current charge level and a nice A/C-powered battery charger is included. I haven't used it enough to comment on blade edge retention, but I can easily sharpen that type of serrated blade with a small triangular stone, so it's not a concern to me. The build quality looks and feels very good and the ergonomics are excellent. The only drawback --and it's a minor one-- of an electric filet knife is that the handle is much larger in diameter than a normal filet knife and the blade is a little less flexible, so it's necessary to set up your fillet board next to the edge of the counter or table or raise it up on a block so you can get the knife horizontal to your work. I know that some folks like to keep a traditional filet knife handy for taking the skin off the fillets, but I don't find that necessary. I'm happy with this KastKing knife and think it's a good value, like their other products. I've been debating buying an electric fillet knife for years and I'm glad I finally got one. Review: Outstanding - I recently had the opportunity to try out the KastKing Lithium-ion Electric Fillet Knife (Speed Demon Pro), and I must say, I'm thoroughly impressed! As an avid angler and outdoorsman, I've used my fair share of fillet knives, but this one stands out from the rest. Pros: Powerful and Efficient: The Speed Demon Pro packs a punch with its high-speed motor and lithium-ion battery, making quick work of even the toughest filleting tasks. Ergonomic Handle: The contoured handle fits comfortably in my hand, reducing fatigue and providing excellent control. Superior Blade: The stainless steel blade is razor-sharp and resistant to corrosion, ensuring smooth cuts and durability. Cordless Convenience: The rechargeable battery provides extended battery life, allowing me to fillet multiple fish without needing to recharge. Carry Case: The included carry case is sturdy and convenient, keeping the knife and accessories organized and within reach. Cons: Battery Life Indicator: A battery life indicator would be a welcome addition, as it's difficult to gauge when the battery is running low. Cleaning: The knife's design can make cleaning a bit tricky, but a soft brush and mild soap help resolve this issue. Overall: The KastKing Lithium-ion Electric Fillet Knife (Speed Demon Pro) is an excellent addition to any angler's or outdoorsman's toolkit. Its impressive performance, comfortable design, and convenient features make it a valuable asset for filleting and preparing fish. While there's room for minor improvements, I highly recommend this product to anyone seeking a reliable and efficient electric fillet knife. Recommendation: If you're in the market for a high-quality electric fillet knife, look no further than the KastKing Speed Demon Pro. Its superior performance, ergonomic design, and affordable price point make it an unbeatable value. ## Features - Balanced Design & TPR Handle: Enjoy fatigue-free filleting with the Speed Demon Pro Li's perfectly balanced, ergonomic design. Electric fish fillet knife with thinner, soft TPR handle ensures a firm, non-slip grip for precise control and safety - High Torque Motor: Equipped with a potent high-speed, high-torque motor that delivers efficient performance for quick, smooth, and effortless filleting. Regardless of the fish size or species, this electric fillet knife is your ultimate fishing tool - Extended Battery Life & Indicator: Electric knife powered by a 12.6v lithium-ion battery that offers up to an impressive 1 hour and 40 minutes of continuous runtime on a single charge. A comprehensive battery level indicator displays the remaining charge - Superior Blade Quality & Selection: Each pack comes with corrosion-resistant 420 stainless steel blades, featuring a durable titanium Vapor Deposition coating. The Angler Pack fillet knife includes a 7" Finesse blade and a 9" Talon flex blade - Custom Carry Case: Both packs include a custom-molded, slim EVA carry case for convenient storage and transport of your electric knife cordless, blades, and accessories. The slim style case fits easily in boat compartments, luggage, packs and more ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C8TF7N7X | | Age Range (Description) | Adult | | Age Range Description | Adult | | Best Sellers Rank | #22,893 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #21 in Fishing Filet & Bait Knives | | Blade Edge | 420 Stainless Steel with Titanium Plating | | Blade Material | 420 Stainless Steel with Titanium Plating | | Blade Shape | Serrated | | Brand | KastKing | | Brand Name | KastKing | | Color | Orange | | Customer Package Type | Frustration-Free Packaging | | Customer Reviews | 4.4 out of 5 stars 537 Reviews | | Hand Orientation | Ambidextrous | | Handle Material | Thermoplastic Elastomers (TPE) | | Included Components | Storage Case, Charger, 1 Lithium-ion Battery, Knife & 2 Blades | | Is Product Cordless | Yes | | Item Length | 16.5 Inches | | Manufacturer | KastKing | | Model Name | DS1666X-09 | | Model Number | Speed Demon Pro | | Power Source | Battery Powered | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Fishing, Outdoors | | Reusability | Rechargeable | | Set Name | Angler Pack | | Special Feature | Balanced Design & TPR Handle, High Speed High Torque Motor, Extended Battery Life & Indicator, Superior 420 Stainless Blade, EVA Custom Carry Case Special Feature Balanced Design & TPR Handle, High Speed High Torque Motor, Extended Battery Life & Indicator, Superior 420 Stainless Blade, EVA Custom Carry Case See more | | Special Features | Balanced Design & TPR Handle, High Speed High Torque Motor, Extended Battery Life & Indicator, Superior 420 Stainless Blade, EVA Custom Carry Case | | Style | A: Angler Pack (2 Blades +1 Battery Pack) | | Theme | Fishing | | Unit Count | 1.0 Count | ## Product Details - **Age Range (Description):** Adult - **Blade Material:** 420 Stainless Steel with Titanium Plating - **Brand:** KastKing - **Color:** Orange - **Handle Material:** Thermoplastic Elastomers (TPE) - **Included Components:** Storage Case, Charger, 1 Lithium-ion Battery, Knife & 2 Blades - **Model Name:** DS1666X-09 - **Recommended Uses For Product:** Fishing, Outdoors - **Style:** A: Angler Pack (2 Blades +1 Battery Pack) ## Images ![KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Cordless Rechargeable Fishing Knife with 2 Blades, High Torque Motor with Extended Battery Life, Ergonomic Handle and Custom Carry Case - Image 1](https://m.media-amazon.com/images/I/61VdtNrNtDL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Is the handle comfortable?** A: I will tell you that it is very comfortable to use and does not require a lot of effort. I have tried other brands, handle too large to grip comfortably. Trigger requires way too much pressure to engage. But KastKing's is a completely new design! **Q: This item is cordless or not?** A: Good feeling handle and cordless. This is the knife I had been looking for **Q: How long is the battery life?** A: Not sure about the specifics, but you can check out the detailed description. For me, it feels good so far **Q: How do you feel about using this electric fillet knife?** A: Awesome electric fillet knife for the price. Makes filleting so much easier ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality, convenience, and value in a complete package. *by D***B on June 13, 2025* A very handy and functional tool. Cordless for convenience. Includes exactly the two blade sizes I need... one suitable for panfish and one for larger fish. The supplied blades were extremely sharp. As others have mentioned, they are a little fidgety to install, but it's really no big deal. They stay put. The included case is very nice! It's quite slim (think of the form factor as being like a large book -- see photo) and there is room inside for doing some custom work to make slots for additional blades if you desire. The fact that it will reportedly accept blades from other brands is a plus, if accurate. The battery has the capacity to very easily handle as many panfish as I usually clean at once (10-15). The battery has a cool "fuel gauge" to read out the current charge level and a nice A/C-powered battery charger is included. I haven't used it enough to comment on blade edge retention, but I can easily sharpen that type of serrated blade with a small triangular stone, so it's not a concern to me. The build quality looks and feels very good and the ergonomics are excellent. The only drawback --and it's a minor one-- of an electric filet knife is that the handle is much larger in diameter than a normal filet knife and the blade is a little less flexible, so it's necessary to set up your fillet board next to the edge of the counter or table or raise it up on a block so you can get the knife horizontal to your work. I know that some folks like to keep a traditional filet knife handy for taking the skin off the fillets, but I don't find that necessary. I'm happy with this KastKing knife and think it's a good value, like their other products. I've been debating buying an electric fillet knife for years and I'm glad I finally got one. ### ⭐⭐⭐⭐⭐ Outstanding *by A***N on July 24, 2024* I recently had the opportunity to try out the KastKing Lithium-ion Electric Fillet Knife (Speed Demon Pro), and I must say, I'm thoroughly impressed! As an avid angler and outdoorsman, I've used my fair share of fillet knives, but this one stands out from the rest. Pros: Powerful and Efficient: The Speed Demon Pro packs a punch with its high-speed motor and lithium-ion battery, making quick work of even the toughest filleting tasks. Ergonomic Handle: The contoured handle fits comfortably in my hand, reducing fatigue and providing excellent control. Superior Blade: The stainless steel blade is razor-sharp and resistant to corrosion, ensuring smooth cuts and durability. Cordless Convenience: The rechargeable battery provides extended battery life, allowing me to fillet multiple fish without needing to recharge. Carry Case: The included carry case is sturdy and convenient, keeping the knife and accessories organized and within reach. Cons: Battery Life Indicator: A battery life indicator would be a welcome addition, as it's difficult to gauge when the battery is running low. Cleaning: The knife's design can make cleaning a bit tricky, but a soft brush and mild soap help resolve this issue. Overall: The KastKing Lithium-ion Electric Fillet Knife (Speed Demon Pro) is an excellent addition to any angler's or outdoorsman's toolkit. Its impressive performance, comfortable design, and convenient features make it a valuable asset for filleting and preparing fish. While there's room for minor improvements, I highly recommend this product to anyone seeking a reliable and efficient electric fillet knife. Recommendation: If you're in the market for a high-quality electric fillet knife, look no further than the KastKing Speed Demon Pro. Its superior performance, ergonomic design, and affordable price point make it an unbeatable value. ### ⭐⭐⭐⭐⭐ A must have in a fisherman's arsenal *by A***W on December 28, 2024* Great electric fillet knife that should be in every fisherman's arsenal. Let's start with the ergonomic case that is super slick and filled with foam shaped to hold the knife body and its blades, battery and charger. The case is super slim which makes it very convenient to carry. I bought the knife version with two blades and they are perfect size to fillet both smaller and larger fishes. I even tested the knife on a roast beef during holidays and it cut extremely easy and precisely. I was impressed as meat is tougher to cut than fish. The knife body feels light even with the battery plugged in. Battery has a convenient charge level indicator at the bottom so you can check when it needs to be recharged. Blades are sharp and easy to change. I recommend adding the blades before adding the battery so you don't risk to accidentally start the knife as you are placing the blades in it. As an avid fisherman I have to say this fillet knife is a must have. Cut my filleting time in half if not less. If you are thinking of getting one go ahead I don't think you will be disappointed. Great job Kast King! ## Frequently Bought Together - KastKing Lithium-ion Electric Fillet Knife (Speed Demon Pro) - Rechargeable, Cordless, High Speed, Extended Battery Life, Superior Blade, Ergonomic Handle, Carry Case Fishing, Filleting, Outdoors - KastKing Kut Safe Fillet Gloves, Ultimate Cut Resistant Gloves for fishing and Outdoor Use, ANSI Level 6 Cut Protection - KastKing Fillet Knife and Bait Knife, Razor Sharp G4116 German Stainless-Steel Blade 5" - 12", Professional Level Knives for Filleting and Boning, Non-Slip Handles, Includes Protective Sheath --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/568466999-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife-cordless](https://www.desertcart.us/products/568466999-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife-cordless) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-11*