--- product_id: 729070227 title: "KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife" brand: "kastking" price: "$359.49" currency: USD in_stock: true reviews_count: 5 category: "Kast King" url: https://www.desertcart.us/products/729070227-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife store_origin: US region: United States of America --- # 12.6V high-torque motor 100+ min runtime lithium-ion battery 420 stainless steel titanium-coated blades KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife **Brand:** kastking **Price:** $359.49 **Availability:** ✅ In Stock ## Summary > 🎣 Slice like a pro, fillet like a legend! ## Quick Answers - **What is this?** KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife by kastking - **How much does it cost?** $359.49 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/729070227-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife) ## 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 - • **Ergonomic Precision Grip:** TPR handle with balanced design for fatigue-free, razor-sharp control - • **Powerful High-Torque Motor:** Effortlessly fillet any fish size with lightning-fast, smooth cuts - • **Sleek Custom EVA Carry Case:** Slim, durable storage that fits perfectly in your boat or travel gear - • **Long-Lasting Lithium Battery:** Up to 1 hour 40 minutes runtime with clear battery level indicator - • **Premium Corrosion-Resistant Blades:** Dual 7" & 9" titanium-coated blades for finesse and heavy-duty slicing ## Overview The KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife is a top-tier angler’s tool featuring a high-torque 12.6V motor, ergonomic TPR handle for comfort, and corrosion-resistant 420 stainless steel blades with titanium coating. Its rechargeable lithium-ion battery delivers up to 100 minutes of continuous use, complemented by a smart battery indicator. Packaged with a slim EVA carry case, this cordless fillet knife set is engineered for precision, durability, and effortless portability—making it the ultimate upgrade for serious fishing enthusiasts. ## Description The KastKing Speed Demon Pro Li Rechargeable electric fillet knife Packs are the ultimate tool kits for every angler. Electric fish fillet knife include a fillet knife with a perfectly balanced design and a thinner, ergonomic design, soft TPR handle for precise, fatigue-free filleting. The high torque motor ensures quick and effortless processing of any fish species or size.Superior-quality, corrosion-resistant 420 stainless steel blades are included in each pack. The Angler Pack electric knife comes with a 7" Finesse blade and a 9" Talon blade for big jobs.Electric fillet knife for fish is powered by a 12.6v lithium-ion battery that provides up to 1 hour and 40 minutes of continuous runtime. A comprehensive battery level indicator displays the remaining charge at 100%, 75%, 50%, and 25%, ensuring you're never caught unprepared.The Angler Pack fillet knife come with a custom-molded slim EVA carry case for convenient storage and transport of your fillet knife, blades, and accessories. With the KastKing Speed Demon Pro Li Rechargeable Fillet Knife Packs, you're fully equipped for any filleting task. 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. Review: A must have in a fisherman's arsenal - 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! ## 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 | #97,707 in Sporting Goods ( See Top 100 in Sporting Goods ) #13 in Fishing 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 516 Reviews | | Hand Orientation | Ambidextrous | | Handle Material | Thermoplastic Elastomers (TPE) | | Included Components | Storage Case, Charger, 1 Lithium-ion Battery, Knife & 2 Blades | | Included components | Storage Case, Charger, 1 Lithium-ion Battery, Knife & 2 Blades | | Is Product Cordless | Yes | | Item Length | 16.5 Inches | | Item Weight | 1.44 Kilograms | | Manufacturer | KastKing | | Model Name | DS1666X-09 | | Model Number | KTAEFKSDP-LI1B2KOR | | Model name | DS1666X-09 | | Number of Items | 1 | | Power Source | Battery Powered | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Fishing, Outdoors | | Recommended uses for product | Fishing, Outdoors | | Reusability | Rechargeable | | Set Name | Angler Pack | | Special Features | Balanced Design & TPR Handle, High Speed High Torque Motor, Extended Battery Life & Indicator, Superior 420 Stainless Blade, EVA Custom Carry Case | | Special features | Balanced Design & TPR Handle, High Speed High Torque Motor, Extended Battery Life & Indicator, Superior 420 Stainless Blade, EVA Custom Carry Case Special features Balanced Design & TPR Handle, High Speed High Torque Motor, Extended Battery Life & Indicator, Superior 420 Stainless Blade, EVA Custom Carry Case See more | | Style | A: Angler Pack (2 Blades +1 Battery Pack) | | Theme | Fishing | | Unit Count | 1.0 Count | ## Product Details - **Age range (description):** Adult - **Brand:** KastKing - **Model name:** KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - **Recommended uses for product:** Fishing, Outdoors ## Images ![KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Image 1](https://m.media-amazon.com/images/I/61VdtNrNtDL.jpg) ![KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Image 2](https://m.media-amazon.com/images/I/7186NyDP8XL.jpg) ![KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Image 3](https://m.media-amazon.com/images/I/71Q9xbP2oWL.jpg) ![KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Image 4](https://m.media-amazon.com/images/I/71ulRs2o25L.jpg) ![KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Image 5](https://m.media-amazon.com/images/I/71XnKDkrl4L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Is it worth the price?** A: Yes, It has extreme power and it's comfortable to hold, and blades are sharp enough, love everything about it. **Q: How to remove battery?** A: Press in on each side of the battery at the same time with your two fingers. **Q: How long can it last when fully charged?** A: It actually works as advertised, about 100 minutes on a single charge. **Q: It comes with a carry case?** A: Yes, the carry case looks very beautiful, I got this for my husband who is an avid fisherman and he absolutely loves it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Outstanding *by A***N on 24 July 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 28 December 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! ### ⭐⭐⭐⭐⭐ Quality, convenience, and value in a complete package. *by D***B on 13 June 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. ## Frequently Bought Together - KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife - Cordless Rechargeable Fishing Knife with 4 Blades, High Torque Motor with Extended Battery Life, Ergonomic Handle and Custom Carry Case - KastKing Kut Safe Fillet Gloves, Ultimate Cut Resistant Gloves for fishing and Outdoor Use, ANSI Level 6 Cut Protection - KastKing Folding Fillet/Fishing/Camping/Hunting Knife, Razor Sharp G4116 German Stainless-Steel Blade, Non-Slip Handles, 13 ½ inch overall Length, only 7 ½ inch folded, Includes Sheath --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/729070227-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife](https://www.desertcart.us/products/729070227-kastking-speed-demon-pro-lithium-ion-electric-fillet-knife) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-08*