KastKing Fillet Knife, Razor Sharp G4116 German Stainless-Steel Blade 5" - 9", Professional Level Knives for Filleting and Boning, Non-Slip Handles, Includes Protective Sheath. review and price compare 2025

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Product overview

Brand	KastKing
Handle Material	Bone
Color	A: 5'' bait knife
Blade Material	Stainless Steel

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Razor Sharp Stainless Blades – All new KastKing knives utilize premium, razor sharp G4116 German Stainless-Steel blades with a beautiful black finish. KastKing knives will maintain their edge longer in both fresh and saltwater applications and make the job of cutting baits, filleting fish of all sizes, steaking large game fish and trim or remove meat and fish from the bone easier than ever before.
The Right Knife For The Job - The 5” Bait Knife is stiff and strong, it has a serrated top edge that makes cutting frozen bait quick and easy. The razor-sharp leading edge allows the fisherman to easily prepare both chunk and cut plug style baits. The 6”, 7” & 9” Fillet Knives are not only sharp and but also have the perfect flexibility so the knife will follow natural contours for perfect fillets. The 9” Strong Fillet Knife is a powerhouse for steaking big game fish like salmon, tuna and more.
Non-Slip Super Polymer Grip - We use the most comfortable and slip-resistant, super polymer grips for your safety and comfort. These handles feel great in your hand and ensure that you always have a solid grip on your knife. These handles also clean up easily and stay looking good longer.
Includes Protective Knife Sheath – Each knife includes a light-weight and durable sheath to protect the blade and keep you safe in between jobs. The unique design of the sheath will lock the handle in for safety but removes easily when needed. The open slots in the sheath are design to allow water to drain easily so that your knives stay dry and sharp.
Affordable Innovation – KastKing fishing knives are available in the most requested lengths and shapes so that you’ll always have the right tool for the job.

Product Description

5” Versatile Knife - Fixed Blade

The 5” versatile fixed-blade outdoor knife is stiff and strong, it has a serrated top edge that makes cutting frozen bait or wood quick and easy. The razor-sharp leading edge allows the fisherman to easily prepare both chunk and cut plug style baits.

6”, 7” & 9” Fillet Knives - Flexible Blade

The 6”, 7” & 9” stainless curved blades have the perfect flexibility so the knife will follow natural contours for perfect fillets, is also an awesome ideal for thinner or more delicate cuts of meat such as fish or chicken.

9" Strong Fillet Knife - Fixed Blade

The 9” Strong Fillet Knife much thicker and stiffer than other knives, better for big fish like salmon, tuna and other tougher meats.

12'' Slicing Knife

KastKing 12 inch Round Tip Granton Edge Slicing Knife, with a razor sharp edge designed for maximum cutting performance, this knife is suited for slicing everything from meats, to cakes, to sandwiches. The Granton blade creates pockets of air, which prevent food from sticking to the blade and creates less friction, allowing for easier motion and higher efficiency.

5” Versatile Knife

6”, 7” & 9” Fillet Knives

9" Strong Fillet Knife

12'' Slicing Knife

6”, 7” & 9” Fillet Knives - Flexible Blade

The Razor Sharp, Flexible and Curved Blade for perfect filleting fish, boning meet and processing any food .

Why KastKing knives are worth having?

Razor Sharp

Black, G4116 German Stainless Steel blades are razor sharp and maintain their edge for easy boning and filleting.

Good Value

1.Includes a durable knife sheath to keep your blade safe and ready to go to work.

2.G4116 German Stainless Steel blades .

3.We use the most comfortable and slip-resistant, Super-Polymer grips for your safety and comfort.

Professional Level Knives

KastKing fishing knives are available in the most requested lengths and shapes so that you’ll always have the right tool.

Razor Sharp German Stainless Blades
Non-Slip Super Polymer Grip - comfortable to hold
Includes Protective Knife Sheath
Affordable Innovation



Features	KastKing 8 Inch Chef Knife, Razor Sharp 8Cr14 Stainless-Steel Blade with Smooth/Easy to Clean Kraton G Polymer Handles	KastKing Spartacus Fillet, Boning and Food Prep Knife, Razor Sharp 8Cr14 Stainless Steel Blade, 9Inch	KastKing Folding Fillet Knife, Razor Sharp G4116 German Stainless-Steel Blade, Non-Slip Handles, 13 ½ inch Overall Length, only 7 ½ inch Folded, Includes Sheath	KastKing Waterproof Floating Digital Fishing Scale with No-Puncture Lip Gripper	KastKing Fishing Tackle Bags - Large Saltwater Resistant Fishing Bags - Fishing Tackle Storage Bags	KastKing Cutthroat 7 inch Fishing Pliers, Saltwater Resistant Fishing Gear, Tungsten Carbide Cutters, Corrosion Resistant Teflon Coating

product description

product details

Date First Available ‏ : ‎ April 26, 2021
ASIN ‏ : ‎ B093HBQTKP

important information

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Questions about KastKing Fillet Knife, Razor Sharp G4116 German Stainless-Steel Blade 5" - 9", Professional Level Knives for Filleting and Boning, Non-Slip Handles, Includes Protective Sheath.

I am looking at a manual sharpener what would you recommend?

Answer: Get yourself a Worksharp knife sharpener, either the orig one for $60, or the updated Ken Onion edition ($120), both are FANTASTIC. I’m TERRIBLE at sharpening anything, but this thing (I got the Ken Onion edition) has made it easy, quick and best of all, a “good knife sharpener” out of me! I don’t sell them, have no affiliation... I just like a good product when I get one, which is rare these days. Good luck.

Answer: I recommend going to your local harbor freight or ordering online and getting a 1x30 inch belt sander and getting some 600 grit bolts and a leather polishing belt for the sander too and you will have razor sharp knives all the time. Dont waste money on a work sharp. You can get the harbor freight set up and the belts for about the same price if not cheaper

Answer: Hi there,

Answer: Get a Norton crystolon or India stone and learn to free hand. You can get either for probably twenty online or in a hardware store.

Answer: This is a knife. If you need a sharpener I recommend asking the question on a sharpener listing. Good luck.

Answer: I use a 2000 grit stone. Great knife for the money.

How well does this hold a edge? Also after a couple sharpening does it still hold a edge like if it was new?

Answer: For those too young to remember great grandpa shaving with a straight razor, let me give you a quick education. RAZOR sharp knife means it will not hold an edge. The sharper the edge, the quicker it will dull. That's why great grandpa had a razor strop that he honed his beard cutting steel with every time he used it. A fine razor edge on a fillet knife is important, as is the knowledge that you must hone (not sharpen) the edge regularly to maintain it.

Answer: Gets real sharp when sharpened but Won't hold an edge for long. Even the guy at the knife sharpening store said it was a very soft blade. Not recommended for everyday use.

Answer: It does not....

Answer: Not for long.

What would be the best sharpening tool for this knife?

Answer: This is a large can of worms on this ask; I ask 10 folks, will get 10 answers. Since I was little, was taught to use an Arkansas stone, it's my comfort zone and haven't met a blade I couldn't hone yet. I've tried other methods, but for me, the stone is far superior. Technique and angle are critical no matter what your chosen poison for sharpening, practice, practice, practice.

Can a lefty use this knife or is the blade made for right handers?

Answer: I am also a lefty. It works well. Really solid knife for larger fish.

What is this knife's Rockwell Hardness? (please answer only if you know)

How does this knife do cutting through bones?

Answer: I wouldn't use it to cut through bones. That would ruin your knife. This is meant to cut meat away from the bone.

Answer: not sure any knife will cut bone

Answer: Went through rib & y bones in a salmon very easily.

Answer: It will cut through, but dull the blade after a few fish. It’s easy to sharpen after

Do the knives come sharpened out of the box? I see a number of complaints about dull blades.

Answer: I've always used the rapala's. I read the same as you but I still ordered. The knife has a nice non slip handle and mine came very sharp! Also in the box if you fill out a questionnaire you receive another knife or sharpener free of charge. Great deal now I have two!

Answer: It comes factory sharpened which is certainly adequate, but you’ll need to run it over with a sharpening steel to get a razors edge.

Answer: Hi Stewart,

Do these knives contain lead?

Answer: Hi Will,

Answer: Hi, it says it's made of stainless steel. however, when googling if stainless steel contains led it gives a varying of answers. Many of my Culinary friends use this product and we haven't head anything negatively from the teachers! I hope this helps..

Answer: The blade is lead impregnated. Cal Prop 65 approved! It holds a hella sharp edge.

Answer: No I don't believe they do. But what I will tell you is their built very well. Really sharp top. the only set back for me is .. Personally I like knife sheath that hang from the belt. And this one is designed for your belt to go þrough the body of the sheath. If you know what I mean. But ovèall I like it very much, and I feel like it's perfect for fishing, which is why I chose it. Made very well and definitely worth the price tag. thx

Is it dishwasher safe? Knife and sheath?

Does this knife really come sharpened?

Answer: It comes sharpened, but I touched it up before filleting fish. I like them sharp enough to shave and they are not quite that sharp. I cleaned a mess of catfish yesterday and they worked really well. I have 3 of these knives. The strong and the fillet in 9" and have the bait knife

Answer: My carving knife was “sharpened” but I’ve seen plenty of other sharper knives.

Answer: Hi Drew,

Would the 12’ slicing knife be good for carving a turkey?

Answer: Hi there,

Answer: I’ve only cut my brisket with it so far but plan to use it on my turkey this Thanksgiving. It does a great job on beef.

Answer: I believe so. It’s worked great for me on briskets, ribs, steak, chops and chicken.

Answer: Yea it would.

Answer: Absolutely !

How do you sharpen this knife?

Answer: with any standard knife sharpener. Amazon has plenty of options

Answer: Not sure. I usually take my knives to a professional knife sharpening service.

how well will the knife do against salt water? Will it rust, or corrode easy? I am an saltwater angler. Also how long is the whole knife

Answer: The knife appears to be quality made. It is described as "German Stainless Steel" so I would say with reasonable care it should hold up. No knife or any metal object for that matter will resist rust in salt water conditions without proper care.

Answer: It will rust like most steel in saltwater. This will be best avoided by rinsing off with fresh water and hit it with a little WD40 after every trip.

Answer: This knife is junk - period.

I'm confused on the differing reviews on this knife's ability to maintain its sharp edge. Does it stay sharp or not?

Answer: As with just about any knife you get, you’ll have to sharpen it after processing a few fish, especially if you are cutting through scales and/or bones. But you only need a few swipes across a sharpener, and it’s good to go! I found that it remained sharp through processing about 7-8 Alaskan Salmon (cutting scales and bones), before I needed to tune up the edge with a sharpener. Hope this helps!

Answer: It keeps its edge pretty good compared to other filet knives I’ve owned. It’s a good knife, but eventually it does need to be sharpened.

Does the sheath have a belt loop?

Answer: No it doesn’t

Answer: No it does not

Is it full tang?

Answer: Hard to tell with soft handle, but it seems like metal runs through it

Could i debone a chicken with it?

Answer: You can debone anything with this awesome knife. I’ve only had it a bit but I’ve used it on deer and hogs and even fish

Answer: Not really it’s great to fillet a fish but too wide to debone a chicken...

Answer: While we advertise these knives for outdoors, we have had many people use them in the kitchen. They are great universal knives.

Does the size include the handle or the size of the blade?

Answer: Blade size.

Would the 12 inch slicing knife work well to cut through brisket and slice up ribs?

Answer: Yes it would work great for that

Can this knife cut hard organs?

Answer: Not sure what you mean by hard organs, but the knife does cut through, skin, muscle, tendons and other tissue very easily.

Would the 12’ slicing knife be good for carving a turkey?

Answer: Hi there,

Answer: I’ve only cut my brisket with it so far but plan to use it on my turkey this Thanksgiving. It does a great job on beef.

Answer: I believe so. It’s worked great for me on briskets, ribs, steak, chops and chicken.

Answer: Yea it would.

Answer: Absolutely !

I ordered two knives but for some reason the moment the arrived in anchorage alaska the package was rerouted by you, the seller, to kentucky. why?

Why buy this when rada filet knives are made in usa?

Answer: So then buy a Rada? Who cares. It’s a knife

Answer: This is the filet knife my grandson requested for his birthday.

Why does "kastking fillet knife" show up when i search for "rapala fillet knife"? and it's close to the top. many more rapala knives after it.

Answer: The engine searches for every word individually and shows you related items. Also just related items in general... Search for Kastking fillet and Rapala products show up also.

When will it be back in stock??

Answer: No idea , I am a buyer not a seller.

Does this have a Full Tang?

Answer: No idea but works better than any filet knife we have ever used for large fish.

Answer: Yes

How does this series compare to the Spartacus series? Is this one more flexilble?

Answer: It is very flexible

how does this work on 3 pound catfish?

Answer: I only use it for skinning deer and elk, but it is a good knife and I would think it would work well for catfish.

Answer: Should have no problems! Works on 5Lb walleye.

Answer: Depending on the size of knife you choose these things can handle a 3oz crappie to a 350 lb shark... I got tge small bait knife its beoynd razor sharp out the box... Get one qill make skinning and fileting your kittys a cake walk

Which one is better this kastking g4116 or kastking white 8cr14

Answer: The best answer here is your application. Salt or fresh water, large or small game. Start there and it will guide your decisions. Don't mean to sound cliche-ish, but intended application is the guide, all the best!

Hi there!!! do you guys ship them to europe? or just america?

Answer: Hi Fred,

What is the degree of the blade for Resharpening

Answer: 14 to 16 degree

How flexible or stiff is the 9 inch steaking knife?

Answer: Hard metal no flexibility .

What’s the angle of the edge?

Answer: The manufacture says it's 14 to 16 degree each side.

Is this made in garbage China?

Answer: Probably lol it’s a nice knife though, feels good in your hand awesome on 27inch drum and smaller fish

Answer: Probably half of what you think is made in America that you consider quality is made in China by American manufacturers that outsource parts. China has pretty good technology because they stole it from everyone else. Might as well take advantage of our own tech from time to time. If you find something comparable made here or in Europe, go for it.

Answer: I dont know if it is .. but I will tell you I dont think there is any way you could find a better knife for the price. We use it now on a regular basis on our boat in saltwater and had NO issues with it .. and its super sharp out of the box ... I think the key to most knives is to have them properly sharpened .. most people dont know how to and ruin the edge and then blame the knife ... I am buying a couple more as gifts .

Are these knifes Dishwasher safe?

Answer: Hi there,

Answer: Yes, but you shouldn’t run knives through the dishwasher. The heat softens the blade over time.

Answer: I'm not sure but I suspect they are since I've washed them (I have several) in hot, soapy water after letting them soak with no problem.

Does anyone have the offer code for the free item? Mine was thrown out when my wife was cleaning up. Thank you!

Answer: Nooe

Should I get the finesse version of the blade if for filleting fish usually 5 pounds or less? Finesse, regular, strong.

How's the backbone on this knife, stiff, flexible, or in between? I saw one review calling it in between I guess, do I have a second or a third?

Answer: Yeah In between is a good description for the knife. Great knife love it. Got to use it on some flounder and reds this fall and it did great

Will the 6 inch knife be good for trout up to 12 inches?

Answer: I think this knife would be fine. The blade length doesn't need to equal the length of the fish if you only intend to use it to clean and gut trout. I've used a pocket knife in a pinch, but you won't want to put that back in your pocket.

Answer: After using this 6 inch blade on smaller trout. I will be getting a 4 inch blade.

Answer: I personally think yes, I prefer not to use knives with too long of a blade for better control. I use fillet knives as part of my arsenal for large game as well. Of course, like potato chips, you can't have just one...just saying.

Answer: I think the blade is too long. I use mine to fillet Large yellowtail. Over 40” fish. Just my opinion.

doe's kast king offer a decent sheath w/ belt attachment?

Answer: The knife comes with a hard plastic sheath that has openings down the flat length from hilt to almost the tip. There is a tang at the hilt to keep the knife secured. Unfortunately there is no belt type loop incorporated into it. Haven’t had a chance to filet with it yet but it has an interesting rubber like material covering the handle which gives it a nice grip feel in hand. Not sure if the blade is stainless ( may say in the description) as it has a mat black coating. Hope this helps.

Answer: The sheath is nice. It’s a hard plastic with slotted vents. I don’t recall seeing a belt loop. The knife of now at our home in Mexico so I can’t check that. Quality knife for sure.

Answer: Yes it does

Which length blade would you recommend for filleting Crappie or Walleye

Answer: 5"

how is it?Does it work well?

Answer: Works great . Best as a bait knife or gilling knife . I use fir both !

Answer: When I received mine the blade edge wasn't as sharp as they said and the handle looks cool but the material it was made of seemed like it absorb smells from fish over Time so I returned it.

Answer: My brother is a meat cutter by trade and he loves this knife. He says it does a great job.

Answer: It is a nice flexible sharp knife.

When will the 12” carving knife be available?

what is the best way to clean it?

Answer: Like most knives and utensils warm soapy water is the best method. I would not recommend the dishwasher. If you’re in the field and use the knife rinse with clean water until you can use dish soap.

Answer: Mine was so dull with no edge when I got it. Tried to sharpen many times. Threw in the trash. Would not recommend- hot soapy water and white vineger

Does this have a Full Tang?

Answer: No idea but works better than any filet knife we have ever used for large fish.

Answer: Yes

Where is made?

Answer: Mainland China....

Answer: China

How do I get the sheath for the 12” slicing knife? I got the knife in without the sheath. Thank you

Is this made in garbage China?

Answer: Probably lol it’s a nice knife though, feels good in your hand awesome on 27inch drum and smaller fish

What's the difference between the 9' knives? $21.98 and 23.98 Strong and What?

Answer: One is a little more flexible for filleting, the other is a little more stiff for cutting bigger pieces of meat.

how long is the blade?

Answer: 9 inch blade with a 6 inch handle

Answer: Hi Surajit,

Answer: There is a 5" 7" and 9" fillet knife and a 12 "slicing knife.

Answer: 5" 7" 9"

Answer: 7 inches

Product reviews of KastKing Fillet Knife, Razor Sharp G4116 German Stainless-Steel Blade 5" - 9", Professional Level Knives for Filleting and Boning, Non-Slip Handles, Includes Protective Sheath.

Vu Nguyen : Soft metal, can be easily bend.

I wouldn't say it is the best fillet knife, but it will do the job for the weekend warrior who use this knife once in a while. The knife is pretty flexible. The only drawback about this knife is that it is easily bent if you use a good amount of force on it.

Ty8541 : Almost perfect, but not quite

Love this bait knife. I’ve used it for everything from cut-bait, fish scaling, cleaning, and during an emergency to ave a pelican, line cutting. The lack of 5 stars is due to these improvements that need to be made. The little plastic tip, that hold the blade in the scabbard broke off almost instantly. There is also no way to really attach it a wader’s belt, or anything like. If it had a better scabbard, and a way to carry it, it would be an absolutely great all-purpose fishing knife

Amazon Customer : Not sharp

Not sharp at all could barely fillet a fluke

Happycamper : Winner-Winner!

So, like most folks during Covid, my Son-in-Law took up fishing. Didn’t have a fish knife, was using a big pocket knife. The fish filets...looked like it. Give him this one: hard to lose, due to bright orange; really great handle, says it really helps him guide the blade; and the fish filets look like an expert cleaned the fish. Winner-Winner, Chicken Dinner!

Marcus : Dull

Knife came out if the box very dull. Took it to get sharpened and was told that it was a very soft blade. Not worth using over and over again. Cheap knife.

swampseeker : What makes these knives so great?!

These KastKing Knives are amazing. The blade is sleek, very sharp and the handle textures when gripped, feels comfortable and sure. These knives will not come out of your hands no matter what. The German 4116 Steel is also known as a Marine Steel.. They are a steel used in many nautical knives. They also make medical devices from 4116 steel for hygienic applications, due to the high percentage of Chromium added to assure a higher corrocion resistance steel.. Chromium is what makes a steel stainless.. A low quality stainless steel has to have a least 5% Chromium, most stainless steel made will add no less than 10% Chromium to their steel. The 4116 German Steel (also know as the 4116 KRUPP) has 14.50 % of Chromium, which makes it a great knife for saltwater use. Even though there are steel with much higher Chromium added, too much Chromium with weaken the steel to edge retention and flex. The 4116 steel has a fine balance of Carbon, Chromium, Vanadium and Molybdenum which makes this steel so versatile and withstands hard use. It is not an expensive steel to create, but I haven't seen a Chefs knife made out of 4116 steel go less than $100. KastKing has created a masterpiece with these knives.. They are gorgeous and very AFFORDABLE.. If you love knives, (like I do) you will appreciate and enjoy these to your collection..

SeekDestruction : Best filet knife I've ever owned...trust the reviews!

I read a lot of different reviews for various filet knives after mine that I've had for 20+ years would no longer take an edge so it was time to find a new one. The reviews of this knife were very good and I decided to order the 7" version as most of the fishing I do is bass and walleye. This knife arrived in a nice box with nice knife sheath for protection. The knife is extremely sharp which I assume most arrive that way but the main thing that impressed me is the balance and handle...awesome! Lightweight, easy to maneuver and won't slip out of your hand. Plus the blade has some great flex which is key to filleting a fish properly. Great knife and I'd highly recommend...buy it!

PrynceAl : Its all in the knife fa real!!

Never buy the walmart brand filet knives and u dont have to buy a Bubba...KK is the truth...I have been fishing for 35yrs and I just started cleaning my own fish like 2 weeks ago, this knife made me look like a pro.

Update 9/19/2021:
On 2nd thought I still give this knife 5 stars but I found myself really questioning this knife when my friend let me use his Bubba...yea I returned the KK and ordered a Bubba. I had to do sharpening already on the KK only after 3 fish, I also didnt like the cutting action I had to do with the KK ....using the Bubba all I had to do was slide the knife thru the fillet....SOLD.

Kevin Vest : Great value in a filet knife

For the cost of the knife you can't beat the construction and characteristics of the blade. I'm a Texas saltwater guy so my knife as used on a variety of fish species in a tough environment. Flexible enough for the delicate fish with enough backbone for some of the tougher species. Holds an edge very well and is easy to sharpen with just a few passes over a straight edge. Proper care after use is important to keep the rust from the blade but there have been a couple time where I didn't follow through with my process and the blade has help up admirably to the treatment without showing any signs of rust. In my opinion, you can't go wrong with this knife.

Elvisfish : Great knife! Would be a good gift.

I was looking at a more expensive knife. At the moment i couldn't stomach paying three times more for the other brand. I got this one. It works well. I like the sheath that allows the blade to dry. It comes in a nice box that is gift-able. I am looking forward to buying another for my cabin and another for my tackle bag.

Dennis : Very ergonomic and sharp out of the box! I sharpened it to a razor and works even better.

I really like this knife for some of the best ergonomics I have seen on a knife. It was sharp however I made it razor sharp. It works even better after that and I will be watching how the edge retention is.

Mariah Sanders : Must buy!

To be honest I don't know a whole lot about what goes into making a good knife but I can tell you that this is far more then a good knife. It's solid, has good weight to it and and the handle is super comfortable. Most importantly though it is stupid sharp. I have purchased other products from these guys and all of them have passed my expectations. They definitely make high quality stuff and will for sure be purchasing the other sizes to the set.

Kyle : Great knife for the price!!!

Originally I've always cleaned my fish with a Shimano knife and recently it's becoming a hassle because it won't hold an edge. I am a recent graduate and money is low but needed a knife so of course I took a look on amazon and this knife popped up. VERY good buy for me, It came in super sharp and was ready to start cleaning out the box! I didn't have to sharpen it once while cleaning 15 flounder, with my old knife would need a touch up after every other fish. I even used it to clean ducks this season and works perfect for breasting as well!

Vbi : disgusting !

Bought two at once. One of them was used and got the fish scale on it , disgusting ! International shipping , custom opened the box to exam the bio-hazard. Returning.

Mariah Sanders : Must buy!

Danbo : Real nice filet knife

This super sharp filet knife was exactly what I was looking for, and at a great price compared to other filet knives. I use it to cut meat off the bone of whole bone-in rib roasts. Nice small tip for intricate work around and in between the bones. It is sharp all the way to the end of the tip. I'm sure it would be great for filleting fish also.
The blade guard is perfect for storage and is securely held on the blade. I would definitely recommend it to a friend.
And as a bonus, it came in my favorite, easy-to-see color orange! LOL

Priscilla Mortensen : Honestly surprised

I haven't used it yet to Fillet any fish but i did try it out on some beef. The handle is very well made and really comfortable to use. The guard isn't some flimsy plastic to go over the blade it actually stays on the knife. Over all i am very impressed with the quality and price.

RH : First impressions - Substandard functionality

5 stars for looks, but reduced to 2 because it doesn't cut well (I mean, it IS a knife...).
What I like:
Looks!: The design of this knife is really nice; big comfortable handle and great color scheme.
Features: Straight blade with serrations on top plus gut hook - great combination (I couldn't find elsewhere)
What I don't like:
Sharpness, or should I say dullness? The straight blade at first seems sharp but if you try the paper cutting test, it fails big time. In fact, a fish knife I picked up at Walmart for $2.89 was sharper! After a half hour with my sharpener, it now cuts paper quite well.
The serrated part, while looking cool, doesn't cut very well, just tears what you're trying to cut - bad design.

BW : Not the best knife for me

I find that the plastic becomes slippery when handling the fish. Also the cutting edge did not completely extend to the point of the knife so when piercing the skin at the head, extra effort is required to puncture the skin. Knife was sharp out of the box and I value the scabbard. The shape of the handle would be fine if the plastic did not become slippery.

Niki : Kastking fillet knife

Kastking makes some awesome knives, I initially bought their bait knife and like it so much I decided to get their fillet knife. Blade is longer than I expected but well made and flexible also comes with a great grip on the handle and sheath. Would definitely recommend you won’t be disappointed.

DJ FIJI : Best blade for your buck.

I love the feel of this knife in my hand. In fact I liked it so much, I bought 3 total. My first one fell in the water and I was disappointed because it was my favorite fillet knife. So I ordered another one and even bought my captain one too. He loves using it to fillet fish and won't use any other knife.

AutoExec : Great purchase

I am really impressed with this knife. This is a very flexible blade. Those of you who like a little more stiffness should stay away, but I have managed to clean quite a few fish and I get beautiful fillets. The flexibility is especially nice for taking the skin off. In fact, if I really push it, I can take the skin off while leaving most of the silver skin. That wasn't intentional, I just didn't realize how flexible the blade was when I started.

AMS : Sharp as a sword

Think I read a few reviews about it being dull...this sum bitch is sharp as a Samurai sword. Fits perfect, great size and it looks amazing. I don’t get the bad reviews, very sharp out the box. Great so far

Marcus : Dull

Knife came out if the box very dull. Took it to get sharpened and was told that it was a very soft blade. Not worth using over and over again. Cheap knife.

vickster : Great to hold, doesn't stay sharp

I was soooo excited to use this knife and it worked wonders on the first few fish and after about the 5th one being cleaned, it seemed to become dull. Not a happy camper, also would not buy again. I will admit, this knife is comfortable to hold, but no Bueno for staying sharp.

P.Wolf : First knife to break

I was out fishing on my boat I had this knife in the knife holder on my Magma Bait cutting station and went to take the knife out and it snapped in half. First time i ever seen a knife just break for no reason. This knife is over priced by 20x as it didn't even last 1 year.

DJ FIJI : Best blade for your buck.

Danbo : Real nice filet knife

Amazon Customer : Not sharp

Not sharp at all could barely fillet a fluke

Priscilla Mortensen : Honestly surprised

Alyssa L M : Awesomeness!

This has got to be by far the best fillet knife ive seen and held. Just opened and right out the box looks like it has what it takes to fillet a ton of fish. It is a light and flexible blade but does not feel cheaply made. If youre looking for a fillet knife, just order now. You wont be dissapointed.

Niki : Kastking fillet knife

Kelly White : For the price, you can't beat it!

Great fillet knife at this price point. Very sharp and holds an edge pretty well. Not the most flexible knife out there but works well enough for the weekend angler. I used it to fillet walleye and it worked perfectly. I told a couple friends to grab one as well. If you're going to fillet bucket loads of fish on a regular basis, you would probably want to spend more and get a super flexible knife to work with smaller and more delicate fish.

To fillet a few fish on the weekend, I don't see how this knife at this price can be beat.

Pros:
Extremely comfortable handle
Very sharp and holds an edge
The sheath that comes with it is fantastic.
For the price you just can't go wrong

Cons:
Not as flexible as some of the more expensive options but again, unless you're filleting fish by the bucket of all types and sizes, this is not a problem and it will serve you well.

Bottom line, I highly recommend this to anyone that needs to fillet their weekend catches! It will serve you well!

SeekDestruction : Best filet knife I've ever owned...trust the reviews!

Katie L : Good for fishing Men

The handle is very comfortable, the knife is very sharp, and the back of the knife is versatile. Good for fishing.I will recommend it to friend.

Eddie B. : Handles become discolored and begin to break apart

The knives out of the box were amazing. I own the 9, 7 and 6 inch. Each have great performance and great resharpening performance but, these handles need to go back to the lab. All of my handles became discolored, kinda moldy and breakage of whatever kind of latex ish material they used to cover them
The don't hold up well to a lot of use and lots of washing in my experience. I would love an explanation as to why this is happening with these handles.

AaronW : Best grips ever

The grips on these knives are amazing. It feels a lot like the Winn grips they put on some fishing rods. Super soft and non-slip. The blade is very sharp, and flexible on this 9" finesse version. I didn't realize how big a 9" fillet knife is before I ordered. It is much larger than the typical fillet knives I have. Great buy!

GTG : Excellent value

Great knife for the money. Just butchered a while deer with it. Tough enough to separate the hip joint. Fine enough to delicately dissect out the back straps. As good as knives that cost four times as much. Highly recommend.
Great gift for dudes if you have one that needs a gift. It’s a rare man that wouldn’t like to have another good knife.

Bookworm : Easy to hold but does not come sharp

This knife is a great size - easy to manage - good for both bigger lake fish and the smaller ones that you choose to keep. I love that the orange handle makes it easy to spot and that the cover clips on and doesn't just slide off. This came sharp enough to cut up an apple or pear... but not sharp enough o slice a very ripe tomato... which means it is not sharp enough to fillet a fish. The handle also seems to hold on to odors - which could be a problem in the long run when using for fish. This is advertised as a very flexible blade but I found it to be quite stiff.

Bill Andersen : dull upon arrival & fairly stiff blade

Knife came Very Dull. Only machine ground, not precision ground or honed.
It.took an edge after some coaxing, but no idea if it will hold an edge.
NOT the most flexible blade at all. Fairly stiff for a fillet knife. Maybe this 9" blade only good for huge fish ? Not a butcher knife, but stiff.

Bryan : I like it.

7" looks about perfect for freshwater fish. Handle feels good in the hand. Feels something like a cross between "rubberized" and "marshmallow". Blade is unmarked with steel or country of origin. It's definitely sharp, but not "scary sharp".

Lenny Hebert : Really Happy!

I was a little apprehensive to buy another fillet knife without being able to actually hold/try it out since getting burned by the last one I bought. That being said, I am really happy with the grip of the Kastking MadBite 7" knife I just received. The balance is great and the handle is really comfortable. It comes with a sturdy plastic sheath that has a clip at the top to hold the knife snug in place. (Should hold up well as long as it's not thrown around and left out to dry rot) I haven't been able to try it out on fish yet but i did some test cutting on tomatoes, zucchini and squash with it and it's definitely sharp right out of the box. Nice uniform thin slices. This one is staying at the house and I'll be ordering another one for the tackle bag.

GrimmRoper : High quality and sharp

This is a fantastic knife! I'm planning on buying the 6 inch soon. I like the sheath the knife comes with as it protects it in the drawer. The blade is well made and really holds an edge. My knife came razor sharp right out of the box.

This is an excellent purchase.

Joe : Nice!

Love the soft handle, gives it a good grip and feels great in my hand, cool design and color and comes out very sharp out of the box, great quality, happy with my purchase.

Amazon Customer : Not sharp

Not sharp at all could barely fillet a fluke

Adam Gardner : Not A Sharp Knife

I immediately returned this knife. It's not sharp. Not sharp enough to shave with. Not sharp enough to cut my finger when run it across the blade. When you test the blade with your thumb like you would any knife, it's got the feel of a dull steak knife at a cheap restaurant. I'm just glad I didn't wait until I was actually preparing a fish I caught. Lesson learned kids. Read the bad reviews too, not just the good ones.

Alyssa L M : Awesomeness!

Leo Harrison : Must have! Incredible quality at a more than fair price

Must have for any serious outdoorsman. Great price and quality! This knife is not only great looking, but it feels incredible in my hand. Nice cover is a great bonus. The handle has a great wrapping on it that makes it feel like it won't slip when wet. This bad boy is RAZOR sharp out of the box. Excellent flex to the blade. Makes my old fillet knife feel like a piece of junk. I will definitely be buying more of these knives in different sizes. I am totally sold on KastKings products. Super fast shipping too.

vickster : Great to hold, doesn't stay sharp

Vu Nguyen : Soft metal, can be easily bend.

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