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🎣 Slice through your catch like a pro with the Speed Demon Pro — fillet faster, fish smarter!
The KastKing Speed Demon Pro is a cordless electric fillet knife featuring a powerful high-speed motor, extended 1 hour 40 minutes lithium-ion battery life, and two premium 420 stainless steel blades with titanium coating. Its ergonomic TPR handle ensures a secure, fatigue-free grip, while the included slim EVA carry case offers convenient storage and portability. Designed for anglers seeking efficiency and precision, this tool transforms filleting into a quick, effortless experience.





















| ASIN | B0C8TF7N7X |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #16,681 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 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 522 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 |
| Item Weight | 1.44 Kilograms |
| 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 |
| 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 |
D**B
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.
A**N
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.
A**W
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!
A**E
Blade design needs improved.
This knife is pretty good it's quite,comfortable to hold and enough power to do the job. I've cleaned bout 25 sand bass in the last week an still have battery power off first charge. I really like the case it's durable enough to take with me an store's nicely to keep it all in one place.. However the con is the blades look great but really struggle to clean fish. Hard to get through the ribs and fillet. The blades are more like a bread knife not aggressive enough for cleaning fish. They'll do it but it's a struggle. The pro is my old rapala blades fit an work great. If they would redesign this issue I think it would be a perfect alternative to the higher price knifes.
T**T
SO WORTH IT!
First off, I placed the order close to 10pm Thursday night, and it arrived Monday just after lunch. It’s like half the price of some others I was looking at, but I wanted to try it, because I already know that Kast King gear is well built. (I bought a couple of their tackle bags several years ago, and absolutely no issues.) Having said that, must say at the front of this, that the battery pack that came with the knife did not function right out of the box. I plugged it into the charger overnight, but still no juice. So I contacted the supplier, sent them a video of what was going on, and they mailed out a full replacement the next day. AWESOME!! So continuing the review, the semi-soft-case is sturdy, including heavy duty zippers, and everything is neatly organized and protected in the foam interior. I don’t always keep cases that come with tools, but I’ll definitely be using this one. Picking up the knife handle, initially looks big, because it is, especially when you’ve spent most your life with a classic fillet knife, but its rubberized grip feels good in your hand, contoured and secure, even with wet hands. The motor feels plenty powerful. And the noise isn’t bad at all, pretty much what I was expecting. Both sets of blades were very sharp, and clicking them into the handle was easy, as long as they’re aligned. The 9” blade is plenty big for the fish I catch, typically less than 5lbs, but it’s got good flex, and I don’t doubt it will go through scales and ribs no problem. The 7” finesse blade looks perfect. I bet this thing will fly through perch. I’ll update after I’ve had a chance to put it to the test, but initially, I’m very happy with this knife, and the customer service was absolutely excellent.
D**O
Excellent choice for an electric filet knife!
I own a number of KastKing rods and reels, and all have been of the highest quality. This electric knife is no exception! It is very well constructed, easy to handle, and has a very nice case to keep all the parts together. I particularly like the battery indicator light that warns you when it needs to be charged. I bought it to fillet large redfish which are particularly hard to fillet. This knife cuts through them like butter. I am very happy with my purchase !!!!!
A**E
Niced - BUT
Nicely balanced in my hand. The battery must be removed in order to charge it, and it is difficult to remove from the knife body!
L**O
A must for every fisherman
The Kastking electric fillet knife(Demon-pro) is a must for every fisherman. First the convenience of not having to plug in is huge: I used it to cut the throat of the walleye I caught to bleed them out in my live well. Next I was able to clean the walleye on shore without needing an outlet and having a power cord in the way. Super convenient. The case is super slim which makes it very convenient to carry to the boat. It comes with two blades and they are the perfect size to fillet both smaller and larger fish(Walleye and perch in my case). I will even use it to carve the Turkey on Thanksgiving The stainless steel blades are razor-sharp and resistant to corrosion, ensuring smooth cuts and durability. Its high-speed motor and lithium-ion battery make quick work of even the toughest filleting tasks. The contoured handle fits comfortably in my hand, reducing fatigue and providing excellent control. Its superior performance, ergonomic design, and affordable price point make it an unbeatable value!
Trustpilot
2 days ago
2 weeks ago