Top 7 Best Fillet Knives For Catfish: Which One Would You Pick Up?

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Did you know?

Filleting a fish requires a knife that cuts through flesh and bones with unmatched precision.

Ordinary kitchen knives cut through the flesh and bones of a fish, but they lack the precision of the best fillet knife for catfish.

What makes a knife cut through a fish precisely is the curved and ultra-sharp blade.

The blade is also flexible and easily bends without breaking to allow you to maneuver it when filleting a fish.

With plenty of fillet knives for catfish available on the market, finding the best ones might be a daunting task.

This article presents a few great fillet knives for cleaning a catfish.

Best Electric & Manual Fillet Knives For Catfish (Quick Update)

* A Serious Contender *

DALSTRONG Fillet Knife - 6" - Gladiator Series - German HC...
  • Outstanding craftsmanship, cutting-edge technology, stunning design...
  • Incredibly razor sharp, full-tang, imported high-carbon German steel...
  • Award winning design, with satisfying heft, premium materials and...

Related fillet knife collections:

How to Buy a Good One?

Blade Material

The blade is an essential part of a knife for catfish. Its material determines its performance and durability. Stainless steel is the standard material for such a product.

Besides, those that comprise stainless steel as their materials resist rust and retain their ultra-sharp performance for a long time. Therefore, to look for a fillet knife with a stainless steel blade.

The Performance

The knife should have a blade with a razor-sharp edge. Such cuts through the flesh and bones with unmatched smoothness and with ease. Therefore, buy a model that has a razor-sharp blade.

Blade Length

Blade length determines the size of a catfish that you can fillet. A 5-inch and 6-inch blades are ideal for small to medium-size catfish. But a 7-inch-long blade is the standard length for most medium-sized catfish.

Larger catfish will need longer blades. As such, choose a knife whose blade length will allow you to fillet a catfish of your preferred size.

The Handle

The knife should have an ergonomic and non-slip handle. The knife should feel comfortable in your hand so that you can fillet a catfish for an extended period without fatigue. The non-slip design will ensure you have better control of the blade.

Protective Sheath

A knife that comes with a protective sheath ensures you’re safe from the ultra-sharp blade. The sheath also preserves the ultra-sharp edge for extended service life. Look for sheaths with a vented design that drains any trapped water that might corrode the blade.

Reviews of the Best Products

KastKing (Editor’s Choice)

KastKing Fillet Knife 7 inch, Professional Level Knives for...
  • Razor Sharp Stainless Blades – All new KastKing knives utilize...
  • The Right Knife For The Job - The 6”, 7” & 9” stainless curved...
  • Non-Slip Super Polymer Grip - We use the most comfortable and...

The 7-inch-long razor-sharp edge has a black color finish for elegance and protection from corrosion.

The edge comprises a premium quality G4116 German stainless steel as its material. As such, it stays sharp for an extended period.

The handle is ergonomic and non-slip, thanks to the polymer material. Your knife will feel comfortable in your hand and will not slip away for impressive control of the blade.

The model comes with a vented sheath that drains water. The sheath locks the handle in to keep you safe after filleting a catfish.

The edge has a curved design and is flexible for comfortable filleting performance.

Since it comes in 6-inch and 9-inch-long edges, it’s suitable for cleaning catfish of various sizes.

Our scores:

  • Sharpness: 9/10
  • Handling: 9/10
  • Ease of maintenance: 8.5/10


  • A corrosion-resistant black finish.
  • 7-inch G4116 German stainless steel blade.
  • Ergonomic and non-slip polymer handle.
  • Vented sheath.
  • Razor-sharp performance.


  • No sharpener included.
  • Not dishwasher-safe.

KastKing Spartacus (2nd Runner-up)

KastKing Spartacus Fillet, Boning and Food Prep Knife, Razor...
  • 8Cr14 Stainless-Steel Blades – Each of the new KastKing Spartacus...
  • Cerakote Ceramic Finish – To deliver the very best corrosion...
  • Kraton G Polymer Handle – The highly UV resistant handles provide...

This product is a versatile fillet knife. It owes its impressive performance to its 9-inch-long 8Cr14 stainless steel blade.

The edge has a Cerakote Ceramic finish that makes it elegant and rust-resistant.

It has an excellent finish. Consequently, you can use it in freshwater and saltwater conditions without worrying about corrosion.

The knife’s Kraton G polymer handle is ergonomic and non-slip. It gives you better control even if you have a wet hand.

The product also includes a protective sheath that ensures your edge retains its ultra-sharp performance for an extended period.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 9/10
  • Ease of maintenance: 8.5/10


  • 9-inch stainless steel blade.
  • Ultra-sharp performance.
  • Ergonomic and non-slip handle.
  • Protective sheath.
  • A molded carrying case.


  • No sharpener included.
  • Not dishwasher-safe.

Rapala Deluxe (Best for Design)

-12% Sale
Rapala Deluxe Electric Fillet Knife AC/DC
  • Relaxed Grip Body
  • Includes Adapters for 110V AC, 12V Post Clips & 12V Lighter Plug
  • Advanced Air Flow Design

This is the best electric fillet knife for catfish since it uses AC and DC power sources. It comes with a 110V AC power adapter and 12V lighter plugs and clips.

It also comes with two reciprocating blades that comprise stainless steel metal: 6-inch and 7.5-inch-long blades.

It has a powerful motor that stays quiet throughout the filleting performance. The motor stays cool and doesn’t overheat, thanks to the advanced airflow design.

The handle is ergonomic and non-slip. Every component of the set perfectly fits into the blown-molded plastic case.

This product is the best for users looking for powerful performance from AC and DC power sources.

Our scores:

  • Sharpness: 9/10
  • Handling: 8/10
  • Ease of maintenance: 8/10


  • AC and DC power versatility.
  • 6-inch and 7.5-inch-long stainless steel blades.
  • A highly durable electric motor.
  • Ergonomic and non-slip body.
  • Advanced airflow design.


  • It is a corded electric fillet knife.
  • It doesn’t come with a sharpener.

Bubba Li-Ion Cordless (Best for Sharpness)

BUBBA Li-Ion Cordless Electric Fillet Knife with Non-Slip...
  • Dimensions: 8.5” handle length and weighs 1.11 pounds
  • Ease of use: Non-slip grip handle for outstanding grip security...
  • Durable: Dual-rivet blade design is coated in TiN stainless steel and...

This model allows you to fillet catfish of various sizes. It includes four blades: 7-inch E-FLEX, 9-inch E-FLEX, 9-inch E-STIFF, and 12-inch E-STIFF blades.

The edges are high-quality and durable since they comprise stainless steel metal.

The blades are razor-sharp and will retain their ultra-sharp performance since they have a titanium nitride coating.

The cordless design gives the user more arm movements for better filleting results.

The product comes with two Lithium-ion batteries that have the longest running time on the market.

It also features an 8.5-inch long ergonomic and non-slip handle.

Our scores:

  • Sharpness: 9.5/10
  • Handling: 8.5/10
  • Ease of maintenance: 8.5/10


  • EVA case for portability.
  • TiN coating for rust resistance.
  • Two high charge capacity Lithium-ion batteries
  • Four stainless steel blades.
  • Ergonomic and non-slip handle.


  • Limited runtime.
  • No sharpener included.

Calamus (Best for Flexibility)

Calamus Fishing Fillet Knife And Bait Knives, German G4116...
  • G4116 German Stainless Blades – The razor sharp G4116 German...
  • Available in Four Different Lengths and Shapes – Calamus filleting...
  • Non-Slip Golf Style Handles – Each knife has a comfortable and...

This model is another versatile product. You can use it to fillet a catfish, or as a bait knife.

The 5-inch-long G4116 German stainless steel has an ultra-sharp performance. It cuts through the flesh and bones of a catfish.

The Teflon finish on the blade ensures your knife is resistant to corrosion. Therefore, you can use this product in freshwater and saltwater conditions.

You can also get it in two other lengths: 7-inch and 9-inch-long blades.

The golf-style rubber handle is ergonomic and non-slip, which is a remarkable feature.

If you’re looking for an impressive knife for cleaning a catfish, this model is worth being on your list.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 8.5/10
  • Ease of maintenance: 9/10


  • Teflon coating for rust resistance.
  • Ultra-sharp performance.
  • 5-inch-long stainless steel blade.
  • Golf-style rubber handle.
  • A protective nylon sheath.


  • No sharpener included.
  • Customer service doesn’t respond promptly.

American Angler PRO (Best for Power)

American Angler PRO Electric Fillet Knife, Stainless Steel
  • Fillet with ease: The Pro Series motor boasts 2x more torque than any...
  • Fillet Season after Season: superior drive train components and design...
  • Fillet comfortably: advanced airflow design keeps the Pro Series...

This product has an electric motor that churns out 2X more torque for a powerful filleting performance.

If you combine that massive power with the blade’s ultra-sharp edge, you get one of the best filleting results.

This electric product has a drive train that is 4X as durable as drive trains from rival electric filleting knives.

As such, this is among the best electric knives for catfish if you’re looking for durability and powerful performance.

The corded design ensures you have a constant power supply for an extended filleting performance. However,  it will limit your arm movements a bit.

The air vents on the handle allow the inflow of air for a cool filleting performance.

The ultra-sharp edge is curved, making it easier to fillet a catfish.

Our scores:

  • Sharpness: 9/10
  • Handling: 9/10
  • Ease of maintenance: 8/10


  • 2X more torque.
  • 4X more durable drive train.
  • Ultra-sharp performance.
  • 8-inch 31018DS stainless steel blade.
  • Ergonomic and non-slip handle.


  • No trigger guard.
  • 2-year limited warranty period.

Rhinoreto (Best for Beginners)

-9% Sale
Rhinoreto Fish fillet knife. Flexible, stainless steel...
  • FLEXIBLE, CURVED BLADE. The non-stick coating of the fillet knife for...
  • NON-SLIP, SAFE, RUBBER HANDLE. The handle is large enough to fit all...
  • VENTED, LIGHTWEIGHT SHEATH. The ported design helps reduce weight and...

The 6.5-inch-long blade has a curved design and is flexible, making the knife easier to use.

The edge also boasts a stainless steel metal with a non-stick coating for rust resistance and elegance. Therefore, it can handle freshwater and saltwater conditions without corroding.

The rubber handle is not only ergonomic but also slip-resistant. It feels comfortable in hand and gives the user better control.

Since safety is essential, the handle has a finger guard that keeps your index finger from the unforgiving ultra-sharp edge.

The vented sheath also keeps you safe from the blade, especially after filleting a catfish.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 9/10
  • Ease of maintenance: 8/10


  • It comes with a sharpener.
  • Non-slip and ergonomic handle.
  • Ultra-sharp performance.
  • 5-inch stainless steel blade.
  • A vented sheath.
  • Finger guard for protection.


  • Not dishwasher-safe.
  • The blade becomes dull after a few uses.

Tips for Cleaning a Catfish

Put it to sleep

Starting with a live catfish is great since it lets you know your food will be fresh. You can put the fish out of misery by pithing it.

Cut around the head

Use a filleting knife to cut around the base of the head in a ring. But don’t remove the head just yet! This will be the point from which you will skin the catfish.

Remove the fins

Cut off the fins: dorsal and ventral fins. You can also cut off any remaining fin.

Remove the skin

You will start from the cut around the base of the head and advance towards the tail. Keep your knife as close to the skin as possible throughout the skinning process.

Remove head and guts

Cut off the head at the ring you made around the base of the head. A fillet knife has an ultra-sharp blade and will cut through the vertebrate. Then slit the catfish along the belly, all the way down. Remove the guts and don’t puncture anything.

Fillet the Catfish

You could fillet a catfish using different methods. One such method is the dorsal cut filleting method. You will position the blade parallel to the top side of the fish and cut as close to the vertebrate as possible. The goal is to cut off maximum flesh from the fish.


Can I use a dishwasher to clean my blade?

Manufacturers recommend hand washing your blade. A dishwasher has spinning components that may dull your ultra-sharp blade.

How can I sharpen my electric knife for catfish?

This knife has a blade that you can easily detach. You can use a sharpener to hone the blade when it becomes dull.

How long can my electric fillet knife for catfish operate?

Cordless electric fillet knives have rechargeable batteries that run for some time. It depends on the charge capacity. But you can get up to 80 minutes of runtime. Corded fillet knives can run throughout the filleting performance due to a constant power supply.

How long will my blade remain sharp?

Most blades stay sharp until you use them 3-4 times. After that, you will need to hone the blade using a sharpener.

What blade length should I consider buying?

For small to medium-size catfish, a 6-inch-long blade will do. But larger catfish will need 7-9 inches long blades. Consider the blade of the knife depending on the type of fish that you want to fillet.

Why does my blade have a color finish even if it’s stainless steel?

The color finish is a coating that protects the blade from corrosion due to rusting. It also makes the blade non-stick and elegant.

How can I hand wash my blade?

A simple wipe with soapy clothing will do. You will then rinse off the soap on the blade with plenty of clean water. After washing, dry your knife well to reduce the chances of rusting or staining.


The best fillet knife for catfish is invaluable if you’re looking to fillet a fish. It has a design that makes it suitable for filleting a catfish with unmatched precision. You might find your best fillet knife from the list in this article.

You may also find another great filleting knife after using the buyer’s guide in the article. Invest in the best fillet knife to improve your fish-cooking skills.

KastKing’s filleting and boning knife is a great option not just because of the steel used in construction or the well thought out design but because it comes in numerous sizes which can be used on differently-sized catfish.

Another KastKing item good for this fish is the Spartacus knife. Many like this because of its Cerakote ceramic finish and white Kragon G polymer handle.

For those who know very little about fileting, the Rapala Deluxe filleter should help a great deal.

Further reading:

Is Catfish Healthy? Nutrients, Benefits, and More

15 Catfish Recipes That Will Make You a Believer

Last Updated on September 22, 2021

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My name is Andy Wang, and I'm a retired chef. I used to work at the City Vineyard restaurant in NYC. I also had a culinary degree from the Institute of Culinary Education in New York. And this blog is where I share my love for knives and cooking with people like you.