KastKing Spartacus Fillet, Boning and Food Prep Knife, Razor Sharp 8Cr14 Stainless Steel Blade, 7 Inch review and price compare 2025

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Product overview

Blade Material	Stainless Steel
Brand	KastKing
Color	D: 7 Inch Fillet Knife
Handle Material	Stainless Steel

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8Cr14 Stainless-Steel Blades – Each of the new KastKing Spartacus knives feature the ultra-sharp, 8Cr14 Stainless-Steel blades for the ultimate in performance and durability. These blades have a high carbon content to retain their edge sharpness longer and a higher Chromium content than competitive 8Cr13 knives to increase corrosion resistance. Even with these higher quality blades, KastKing Spartacus knives are priced lower to deliver exceptional value.
Cerakote Ceramic Finish – To deliver the very best corrosion resistance of any knife on the market today, Spartacus knives are coated with Cerakote, ceramic finish. This high-temperature ceramic coating will withstand temperatures to 2000 degrees and provides the best corrosion resistance possible. Cerakote is used on high-end firearms and in the automotive industry to ensure a long-lasting finish.
Kraton G Polymer Handle – The highly UV resistant handles provide the ultimate in performance and durability. Kraton G Polymer performs at all temperatures and provides a comfortable and slip-resistant grip during cleaning and processing.
Protective Molded Knife Sheath – Each knife includes a light-weight and durable sheath to protect your blade and provide a safe storage option for your knife. Unlike fabric cases that retain water and cause corrosion, our molded case allows water to drain from the case and air flow to circulate which keeps blades in top notch condition between uses.
Perfect for Fresh or Saltwater – KastKing Spartacus fillet, processing and food prep knives are perfect for all fresh and saltwater applications or for use in the kitchen. These professional level knives will provide years of service and will quickly become your favorite tool for filleting fish, boning meat and processing any food.

From the manufacturer

Each Spartacus knife features a comfortable and durable handle made of Kraton G Ploymers which is highly UV resistant and provides and slip resistant surface. The professional quality handle is a joy to work with and provides the ultimate in comfort and control through long cleaning sessions.

The molded protective case provides a safe storage option for each knife and unlike other fabric or leather cases, will not trap moisture which can quickly cause corrosion. The sheaths are tough and durable while allowing water to drain freely and air to circulate throughout the protective case to keep your knife in top notch condition between uses.

Flexible For Cutting Fillets

KastKing Spartacus Fillet Knives have the proper amount of knife blade flex to make filleting faster, easier, and safer.

Full Sheath Protection

KastKing Spartacus Fillet Knives feature a full molded knife sheath to protect you and the knife blade, which you can release with a flick of your thumb. Sheaths have belt loops and drainage holes.

7 inches Fillet Knife

KastKing Spartacus knives are the ultimate fillet, boning, processing and food preparation knives for the field or home and are perfect for use in fresh or saltwater conditions.

9 inches Serrated

KastKing Spartacus knives are the ultimate fillet, boning, processing and food preparation knives for the field or home and are perfect for use in fresh or saltwater conditions.

9 inches Strong Fillet Knife

KastKing Spartacus knives are the ultimate fillet, boning, processing and food preparation knives for the field or home and are perfect for use in fresh or saltwater conditions.

9 inches Fillet Knife

KastKing Spartacus knives are the ultimate fillet, boning, processing and food preparation knives for the field or home and are perfect for use in fresh or saltwater conditions.

7 inches Fillet Knife

9 inches Serrated

9 inches Strong Fillet Knife

9 inches Fillet Knife

product description

Color:D: 7 Inch Fillet Knife

KastKing Spartacus fillet and food prep knives are a professional quality tool that you can count on for all fish and game processing. They are finished in a beautiful, gray Cerakote, high-temperature ceramic finish over an incredibly sharp, 8Cr14 stainless-steel blade. The high carbon content stainless is easy to sharpen and maintains its edge longer. The higher Chromium content in the blade material delivers higher corrosion resistance and when combined with the Cerakote ceramic finish, these knives will simply out-perform competitive models. Each Spartacus knife features a comfortable and durable handle made of Kraton G Ploymers which is highly UV resistant and provides and slip resistant surface. The professional quality handle is a joy to work with and provides the ultimate in comfort and control through long cleaning sessions. The molded protective case provides a safe storage option for each knife and unlike other fabric or leather cases, will not trap moisture which can quickly cause corrosion. The sheaths are tough and durable while allowing water to drain freely and air to circulate throughout the protective case to keep your knife in top notch condition between uses. KastKing Spartacus knives are the ultimate fillet, boning, processing and food preparation knives for the field or home and are perfect for use in fresh or saltwater conditions.

product details

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Questions about KastKing Spartacus Fillet, Boning and Food Prep Knife, Razor Sharp 8Cr14 Stainless Steel Blade, 7 Inch

Just released july 2019. But how does the blade hold up to perch or walleye tough skin?

Answer: have used mine about a dozen time ad so far it is still as sharp as the day I got it

How do you get fish bits out of the solid sheath? The air hole looks rather small from the pictures.

Answer: Never an issue, lay the sheath aside and clean the fish. Wash all off and back together.

So, the steel in this blade is 8cr14, not 8cr14MoV?

Answer: It's actually a hybrid 8cr14 and a MoV which allows you to use the HOV carpool lane!

7" Spartacus filet knife question. The key to filetting fish is a sharp flexible knife and good feel. Is it light enough to feel the bone edges?

Answer: Yes,you can definitely feel the bones. This knife is EXTREMELY sharp and easy to resharpen. I use the 7" knife on larger fish like walleye and bass and the 5 " knife for panfish.

Answer: Yes, a excellent filet knife needs a flexible shape blade to feel the bone edge and a handle that feels good in the hand.

Product reviews of KastKing Spartacus Fillet, Boning and Food Prep Knife, Razor Sharp 8Cr14 Stainless Steel Blade, 7 Inch

Zach Wood : Great product!

Amazing knife! Love it for filleting smaller fish.

Jaime Anderson : Love this knife!!!

This is one of many Kastking products that my 5 yr old son received for his birthday. As scary as it sounds to have a 5 yr wielding a knife, he uses it like he's been cutting bait for years! The knife is very flexible and fits comfortably in your hand. We absolutely love, love, love our Kastking gear!!

A.D : Very sharp

Extremely sharp comfortable handle

amateur : Not used yet

Seems like a good, flexible blade, haven't used to process any fish yet.

Salvador V. : Great product at affordable price

This is a real fillet knife! Good material, nice and good grip for the handler and the blade keeps the sharp for long

eliu72 : Shaved my arm right outta the box!

I’ve bought crappie fillet knives at this price range!
This knife came razor sharp right outta the box. The handle is very ergonomic and feels good in the hand! Time to go catch some dinner!

John E : Great knife for a good price

Great knife! Good length, very sharp right out of the box, nice slip resistant handle, good flexibility, sheath that locks the blade in nicely. Overall a very nice knife that works very well.

daron weeks : Very sharp knife

This knife came in a nice package. It is very sharp to start with and the sheath seems to hold it securely.

Ryan Burton : Great for any user

I've always used hand me downs knives and have struggled to clean fish with any consistancy. This knife is sharp out of the box and ready to use. Made cleaning my last batch a panfish a breeze.

Amazon Customer : Good knife

I was quite happy with the knife in almost every regard except for the blade shape. My particular unit arrived without a tip. It either broke off or was not ground fully up to the tip. It was not a big deal for me as I used a knife sharpener to make it nice an pointy again. I do highly recommend this knife in ever other regard.

b myers : nice knife

I use this knife in the kitchen. It sharpens easily, and the handle does not slip from my hand when I am cutting up messy stuff. My only complaint is that the handle is hard to clean, but I would rather have that then use a shiny, easier to clean smaller handle knife.

Joy K. : Very sharp, as advertised. Nice grip.

Very sharp, as advertised. Nice grip.

Amazon Customer : Great knives

I got both the 7in fillet and the 9in strong fillet knives and I love them both. Great grip! I cant wait to use them!

jbagcav : Razor sharp out of box...

Haven't used it on fish yet but it's got a comfy grip and razor sharp edge.

jbagcav : Razor sharp out of box...

Haven't used it on fish yet but it's got a comfy grip and razor sharp edge.

Amazon Customer : Another great Kastking item!

Having previously purchased a Kastking spinning reel and loving the quality, I decided to try some of their accessories; starting with this filet knife. It arrived in a very attractive box and is a beautiful knife! The handle feels great in my hand, and the blade is incredibly sharp and appears to be of fantastic quality.

Omar : Looks like a sick knife to have

Have used it yet. Flexible knife don’t know how durable it’d be.

Butt3rBean : You will not regret buying this knife.

What a great buy! Perfect handle, grip & size.
Not to mention the snap-in sheath

Eric Gray : Great grip and sharp blade

Happy with the way it fits in my grip and looking forward to many more filets with this knife!

Brian T. Herlihy : Great quality! And value!

very Sharp. Excellent quality for the price.

Jim334 : Dull Dull Dull

This is the dullest knife I've ever bought in my life.... It came extremely dull and IMO isn't even worth the $25 price. If you buy it you'll have to take it directly to someone who can put an edge on it for you because it's definitely not ready to fillet anything out of the box. It would probably cut cake fine but that's about it. Look elsewhere.

Bryson : Kastking

Bought the Spartacus fillet knife holy cow is it Sharp best fillet knife I've owned by far

Colin K. Lasch : Great Knife, Great Value

Awesome knife! Sharp out of the box. This is going to be a permanent part of my kit for all of my fishing trips in South Florida.

Amber Compton : Very nice

Seems to be very good quality. Fits well in my hand and the locking sheeth is a big plus...

jake : solid blade

great product, quality handle for dealing with slippery fish fingers

Amazon Customer : Good quality

Very stout knife. Built strong. Has larger handle than expected but still great filet knife

David Z. : 7 Inch Knife Locks Very Tightly Into Sheath

I have not yet used the knife on fish, only received the product today, and purchased due to ability of sheath to be strapped to PFD while kayaking and inclusion of a lanyard hole in the grip for the ability to add a floating lanyard. Also, white handle will stay cool in the sun. Many reviewers state the knife is loose in the sheath and falls out. I was ready for this to be the case with mine and make necessary modifications, but none are needed. Maybe they are not pushing the knife all the way into the sheath, as mine locks in very firmly and takes a similar amount of force to remove just as my river shorty emergency knives that are hung upside down on my PFD. The handle is very comfortable and the edge is factory sharp and sliced through paper no problem with a quick test. The white handle appeared dirty but was actually micro fuzz from where the top and bottom of grip contacted the fuzz coated protective packaging insert. The packaging is very nicely done, up there with top shelf bottles of scotch. Eagerly awaiting putting it to use on the locally stocked trout and even those fish in the river my state says not to eat.

Jay Dee : Good bang for your buck

Great quality knife so far. Sharp right out of the box. Time will tell how it will hold up over time but a very good bang for your buck.

Sean : GREAT PRODUCT

Best filet knife I have ever owned.

Amazon Customer : Good quality

Very stout knife. Built strong. Has larger handle than expected but still great filet knife

Rodney : good

So far i like it

Randy Randerson : Solid Knife, Great Value

Well built, handle feels great. 7" fits perfectly in the front pocket of my tackle bag. No complaints here.

Scott R. : The packaging and all around design of the knife is amazing

The packaging on this knife made me feel like I was opening a $100+ knife. The handle of the knife is big, has tons of grip and feels very safe in your hand. The blade is beyond sharp and great flexibility. I filleted 4 crappie yesterday and got more meat of the fish than I ever have. You could totally see through the fish once done. For the price I am overly satisfied with this knife.

Salvador V. : Great product at affordable price

This is a real fillet knife! Good material, nice and good grip for the handler and the blade keeps the sharp for long

Sean : GREAT PRODUCT

Best filet knife I have ever owned.

sdelp : Great Knife... Out of the box Sharpppp

First job was cutting meat for a living. I have a love for sharp, quality knives..... this one will make your fish filleting very easy and safe. Excellent grip, stability and blade quality. Thanks KastKing

CHAD : Very nice Knife

Try to find a better Knife in the under 30.00 class.

This knife is sweet, will be getting the folding version next.

Thanks KK!

Jay Dee : Good bang for your buck

Great quality knife so far. Sharp right out of the box. Time will tell how it will hold up over time but a very good bang for your buck.

you can compare the product price from Costco, wayfair, bestbuy, lowes, target, homedepot, Walmart, ebay, amazon to find the best price for you