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

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

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 high 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.

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

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.

Q:

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

Q:

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.

Q:

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!

Q:

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.

jake : solid blade

great product, quality handle for dealing with slippery fish fingers

Brian T. Herlihy : Great quality! And value!

very Sharp. Excellent quality for the price.

Chris : Worth every penny!!!

Definitely recommend this product, razor sharp right out of the box!! The handle is very comfortable and I get a nice firm grip. I'll be fishing for redfish soon, can't wait to put em to work!!

Update: Caught some whiting at the surf and I was able to put the knife to work.. Did not disappoint, extremely sharp and filleting was effortless. I just ordered another for my dad, he was very impressed!!

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

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.

Nik L : Very good value at the price point ...

After shopping several other options at different price points, we settled on the 7" Spartacus to replace an older, worn-out fillet knife. We are happy with it so far, the knife handles well and feels durable, and the blade has a good combination of flex and backbone. Very similar to a recent review from May 12, we were a bit concerned that the one we received didn't appear sharpened all the way to the tip -- it's slightly rounded at the end, and had pushed through the packaging when we unboxed it. But after sharing the attached photos with Kast King customer service, they said the knife is within specs and that their warranty would cover a replacement should issues arise.

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.

Matt Hernandez : Quality

Quality knife, performs just as advertised, I like the big grip handle! Buying all sizes

Matt Hernandez : Quality

Quality knife, performs just as advertised, I like the big grip handle! Buying all sizes

Amazon Customer : Good quality

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

Amazon Customer : Great!!

Great filet knife sharp comfortable handle .

Amazon Customer : Good quality

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

Philip Shaffer : Good knife, weird handle, horrible sheath

The blade seems good, slightly springy, with a nice protective coating on the blade. I won't know how well it holds its edge until I've used it awhile.

Most knife handles that have indentations for where the fingers wrap around the handle have 4 indentations since the thumb does not go there. This knife has 5 finger indentations. Not sure why it was designed that way but to me it feels a little weird when trying to find a comfortable grip. You can hold it "forward" towards the blade or "back" towards the pommel of the handle. Trying to hold it in the middle definitely doesn't work for me. The handle *does* grip well, and would probably do so even if you are wearing gloves, which is important.

The sheath is an absolute travesty and the manufacturer should be embarrassed to include it with the knife. Problems include: Belt straps are far too thin for a belt; there is NOTHING to help retain the knife so it falls out very easily; when inserting knife into the sheath it frequently catches on something and won't insert; and the sheath is solid meaning that trying to clean out any fish bits pushed in by the blade is going to be very difficult, possibly leading to leaving harmful bacteria in the sheath and on the blade after it's been in there for a bit. My personal advice is to just throw the sheath away and get a real one somewhere else.

The box it came in makes a nice gift box. I would rather the manufacturer had used the money spent on the box to provide a usable sheath.

Blake Miller : Great knife

Weight and feel is great - will come in super handy. Great price as well

Steven Mansfield : One of the best I've used

Stays sharp

Yoon : Good quality

Opened up the box and felt the knife. Was satisfied with the quality and feel of the blade. Excited to use it on my trip next week!

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.

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

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

Amazon Customer : Great quality

Great knife sharp and flexible makes cutting meat easy

Steelhead : Sharp, Great Finish, Excellent Quality

I love everything about this knife but one thing. I think the handle is a little large for the shorter blade length. That said, the knife is very sharp, nicely coated for rust resistence, very non-slip grip, and nice fitting sheath. Overall, I am very pleased with this knife and will buy this model again.

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.

Jennifer Greene : Would recommend.

Razor Sharp as reviews say. Very rugged sheath. Nice product.

daniel : Quality

Awesomeness

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

Very sharp, as advertised. Nice grip.

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.

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.

Brian T. Herlihy : Great quality! And value!

very Sharp. Excellent quality for the price.

kwalker : Very happy with purchase

Great fillet knife

Philip Shaffer : Good knife, weird handle, horrible sheath

The blade seems good, slightly springy, with a nice protective coating on the blade. I won't know how well it holds its edge until I've used it awhile.

Most knife handles that have indentations for where the fingers wrap around the handle have 4 indentations since the thumb does not go there. This knife has 5 finger indentations. Not sure why it was designed that way but to me it feels a little weird when trying to find a comfortable grip. You can hold it "forward" towards the blade or "back" towards the pommel of the handle. Trying to hold it in the middle definitely doesn't work for me. The handle *does* grip well, and would probably do so even if you are wearing gloves, which is important.

The sheath is an absolute travesty and the manufacturer should be embarrassed to include it with the knife. Problems include: Belt straps are far too thin for a belt; there is NOTHING to help retain the knife so it falls out very easily; when inserting knife into the sheath it frequently catches on something and won't insert; and the sheath is solid meaning that trying to clean out any fish bits pushed in by the blade is going to be very difficult, possibly leading to leaving harmful bacteria in the sheath and on the blade after it's been in there for a bit. My personal advice is to just throw the sheath away and get a real one somewhere else.

The box it came in makes a nice gift box. I would rather the manufacturer had used the money spent on the box to provide a usable sheath.

Derek Pulvermacher : Nice for the price

Sharp knife, has a nice flexible blade for filleting panfish.

Steven Mansfield : One of the best I've used

Stays sharp

Julia Zakrewsky : Great feel

Handle seems really comfortable, light, good looking, cool package. Can’t wait to try it out!

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!

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.

Omar : Looks like a sick knife to have

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

Kyle mckean : Great knife

Shipped very fast, it is really sharp. Only time will tell how it holds an edge.

Aaron Nelson : Great Knife, Great Value

No need to blow a bunch of money on a fancy knife, this one will do the job. Has been able to handle any fish I've thrown at it yet. Red Fish, Sheepshead, Snapper, Catfish, Black Dum. You name it.

Spend your money on more fishing lures.

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

Product overview

product features

From the manufacturer

Flexible For Cutting Fillets

Full Sheath Protection

7 inches Fillet Knife

9 inches Serrated

9 inches Strong Fillet Knife

9 inches Fillet Knife

product description

product details

important information

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?

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

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

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?

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