The Best Fillet Knives For Flounders: Which One Would You Choose?

* This post may contain affiliate links. Please see my disclosure here.*

Need something to clear your flounder?

Well, sometimes a chef knife just can’t cut it right.

So, if you want to make it right, only the best fillet knives for flounder can help you.

Besides control, a good specialized fillet knife offers the sharpness and flexibility to make precise cuts.

There are a bunch of different filleting knives in the market.

Impressively, most of them have something to offer.

But how would you know the one knife that suits you best?

In this article, we’ll look at some of my favorites.

But first, let’s clear these things up.

The Best Fillet Knives For Flounders (Updated List)

* A Serious Contender *

DALSTRONG Fillet Knife - 6" - Shogun Series - Damascus -...
  • A Dalstrong culinary revolution combining outstanding and...
  • Unrivaled Performance: Ruthlessly sharp scalpel like edge is hand...
  • Dalstrong Power: Ultra sharp AUS-10V Japanese super steel cutting core...


What is the best knife size you should opt for?

The size depends on the fish size you expect to fillet.

Small blades are suitable for small-sized fish and vice versa.

Nonetheless, a medium-size knife of 7 inches is a good pick for a one-size-fits-all.

What material should you choose?

Stainless steel is ideal for the blade and a non-slip surface for the handle.

So, make sure you pick up one that fits these criteria.

And now, for the most wanted part.

How to Choose One?

Before heading out to buy something, there are a few factors to consider.

The Blade

This is probably the most vital part. The reason being, it is the one to determine how clean your cuts will be.

Also, keep in mind it may be subject to wet environments. Saltwater, in particular, may corrode the blade hence affecting its performance.

With this in mind, you should consider a blade that is corrosion and rust-resistant.

Handle Grip and Comfort

Having a fillet knife with a comfortable and non-slip handle makes the filleting process quicker and easier.

Also, sometimes you may have to use it with wet hands. So, a non-slip grip handle is essential for better control.


The size factor narrows down to the type of fish you will be filleting. Different knife blades come in varying lengths. And, each length is best suitable for a particular size and type of fish.

In other words, shorter blades are best when you need high-precision cuts. They are also convenient when using on small-sized fish like crappie.

Medium-sized blades, roughly around 7 inches, are perfect for filleting fish like bass or trout.

Larger blades, on the other hand, are best to use on larger fish. At the same time, it’s size matters when you think of transportation and storage options.

If you have less space, consider smaller or folding options.


Fillet knives are available in varying blade thickness levels. In simple terms, a thin blade means a flexible knife. Such knives are handy for removing bones and using them on small-sized fish.

However, they may not be best for filleting sizeable fish. It may be a result of too much flexibility and less strength.

Product Reviews

KastKing (Top 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...

This KastKing is our best fillet knife for flounder. It features a premium, razor-sharp G4116 German stainless-steel blade, with an impressive black finish.

It is super-flexible, with a curved blade that adapts to your fish/meat’s natural contours. It is excellent for boning meat, filleting fish, and processing any other food.

It has a super-polymer non-slip grip to enhance your safety and give you comfort when handling food. The handle feels solid and great in your hand. It is also easy to clean and does not fade quickly.

Another fantastic feature of KastKing 7-inch is that it comes with a lightweight and durable knife sheath. The sheath not only protects the knife and handle but also keeps you safe in between jobs.

Our scores:

  • Sharpness: 9.5/10
  • Handling: 9.5/10
  • Ease of maintenance: 9/10


  • Flexible blade for filleting, boning, and food processing
  • Razor-sharp stainless steel blade
  • Comfortable and slip-resistant handle
  • Protective sheath


  • Some people consider it dull.

Victorinox (2nd Best)

-25% Sale
Victorinox Cutlery 8-Inch Straight Fillet Fishing Knife,...
  • The knife is ideal for separating meat, poultry, or fish from the bone...
  • High carbon stainless-steel blade provides maximum sharpness and edge...
  • Blade stamped from cold-rolled steel; bolsterless edge for use of...

This one from Victorinox is perfect for boning fish, meat, and poultry. It has a high carbon stainless-steel blade for excellent sharpness and maximum edge retention.

Moreover, it is ice-tempered to prolong the sharpness.

Unlike most fillet knives, you can use the entire blade of the Victorinox Cutlery 8-inch. Thanks to its bolster-less edge.

It is also easy to sharpen. Its Fibrox handle is slip-resistant, ergonomically designed, and textured. As such, it gives you the optimal balance and comfort you need for filleting.

Interestingly, it comes with a lifetime warranty for any manufacturing defects. It is recommendable to hand-wash this rather than dishwashing it.

Our scores:

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


  • Comes with a highly flexible blade
  • Incredibly durable
  • Super sharp and retains sharpness for a long time.
  • Comfortable handle


  • It lacks a sheath.
  • No full tang

Outdoor Edge (Best for Experienced Users)

Outdoor Edge ReelFlex-Pak, 5-Piece Professional Grade...
  • PROFESSIONAL GRADE FISH FILLET KNIFE SET- Includes three fillet knives...
  • KNIVES - razor sharp German 4116 stainless steel blades with ergonomic...
  • BLADE SHARPENER - two-stage knife sharpener with carbide and ceramic...

This professional-grade filleting set comes with three fillet knives and a ceramic/ carbide sharpener. The three blades are of different lengths, 6, 7.5, and 9.5 inches, to meet your different cutting needs.

Amazingly, the knives have razor-sharp, stainless-steel blades with non-slip ergonomic handles. The sharpener has two sharpening bits, one ceramic and the other one carbide.

You don’t have to worry about storage because the set comes with a hard-sided storage case. Moreover, each one has its polypropylene sheath and a swivel clip belt.

The ReelFlex-Pak set is ideal for a professional fisherman. It does tough filleting jobs for both fresh and saltwater fish.

It also has perfect boning blades for meat processing.

Our scores:

  • Sharpness: 9.5/10
  • Handling: 9/10
  • Ease of maintenance: 8/10


  • Superior flex
  • Corrosion-resistant stainless steel
  • Two-stage ceramic/ carbide sharpener
  • Non-slip grip rubberized handles
  • Hard-side case storage


  • Needs constant sharpening

Bubba (Best for Comfort)

-21% Sale
Bubba 9 Inch Tapered Flex Fillet Knife with Non-Slip Grip...
  • DIMENSIONS: 15” overall length with 9” blade
  • EASE OF USE: Non-Slip Grip handle for outstanding grip security...
  • RELIABLE: Features safety guards for protection from the blade and...

This one from Bubba comes with a high-carbon, stainless steel, non-stick coated, tapered flex blade. The coated surface protects the blade from rust while the steel gives it strength and durability.

It has a 6-inch non-slip handle, with thumb and finger pads. Consequently, it offers a superior grip and excellent control.

It also comes with safety guards for protection from pesky fish spines and blade sharpness. The razor-sharp blade makes the filleting of small panfish and cutting meat easy and fast.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 9.5/10
  • Ease of maintenance: 8/10


  • Non-slip grip handle
  • Finger and thumb pads for comfort and control
  • Rust-resistant blade
  • Durable and sturdy high-carbon blade construction
  • Great flexibility
  • Razor-sharp


  • The coating may flake off with time.

Shun (Best for Versatility)

Shun Classic 7-in. Flexible Fillet Knife with High-Carbon...
  • Stainless steel fillet blade is thinner and more flexible, making...
  • AUS8A stainless steel blade offers strength, wear resistance, and just...
  • Knife blade easily conforms to the ribs of the fish, removing meat...

The Shun Classic 7-in is an all-purpose knife, equivalent to a chef’s knife. Though it’s ideal for fish and meat, it performs well on vegetables and fruits too. You can use it to chop, slice, or mince.

It has indentations/air pockets, which reduce the adhesion and resistance of food.

It also features 69 layers of Damascus cladding for easier food release, premium cutting performance, durability, and beauty.

Another fantastic feature of Shun Classic is its D-shaped wood handle. The Pakka handle reduces wrist strain during use and gives you a comfortable grip.

Its double-bevel flat-ground blade offers excellent knuckle clearance, especially when cutting on a chopping board.

Our scores:

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


  • Durable, moisture-resistant, and robust ebony wood handle
  • Super sharp
  • Impressive flexibility
  • Corrosion-resistant blade
  • All-purpose blade
  • Lightweight


  • A bit brittle
  • A bit narrow
  • Not recommendable to wash in a dishwasher


Can I wash my knife in a dishwasher?

Yes. Nevertheless, this may damage both the handle and blade over time. It can also make the blade go dull.

How can I sharpen it?

Unlike ordinary knives, sharpen the fillet blade in the opposite direction. The tip should be first to hit the stone, followed by the rest of the knife.

What’s the difference between a boning and a fillet knife?

The fillet one comes with the blade curving slightly, whereas a boning knife has a straight blade. Also, fillet knives are somewhat more flexible and thinner.


A flounder is a great option for those who aren’t into fatty, sea-salty types but want to include fish in their dishes.

With its flaky, white flesh and slightly sweet flavor, this is great steamed and then drizzled with lemon butter dressing or pesto sauce.

The trouble with flatfish, this species, in particular, is that it’s pretty hard to prep. Cleaning this is hard. Filleting it – or getting as much meat as you can off the bone – is almost impossible.

But this is doable if you’ve got the right technique and tools.

The fillet knife from KastKing, made from G4116 German stainless steel, is a huge favorite because it comes in various sizes. For this particular fish, a 7-inch filleter is a great option.

Outdoor Edge’s ReelFlex-Pak comes with three filleters made from the same steel as above. Many go for this because the set comes with a carbide sharpener.

If you want a conventional kitchen knife that doesn’t look too outdoorsy, Victorinox’s Fibrox fillet knife is a great tool. Stamped from high-carbon X50CrMoV15 stainless steel, this is one of the thinnest, most flexible, yet ultra-durable knives in the market.

Further reading:

Best Garlic Parmesan Flounder Recipe

Pan-Fried Flounder Recipe

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.