Best Fillet Knife For Saltwater Fish

The Best fillet knife for saltwater fish can be helpful for quickly filleting the fish without damaging the slice of meat. 

In the market, there are numerous types and designs of fillet knives. However, a fillet knife with a 12 to 15 degrees edge is considered the best fillet knife for saltwater fish

The flexible blade of this knife enables you to cut easily along saltwater fish backbones and under tough skin, ensuring you don’t waste any edible parts. The article listed the top five best saltwater fillet knives that are exceptionally effective for saltwater fish.

Additionally, the buying guide will help you learn the essential factors before buying the best saltwater fillet knives.

  • Bubba 9 Inch Fillet Knife 
  • Mercer Culinary Millennia
  • KastKing Fillet Knife 9 Inch

Bubba 9 Inch Fillet Knife 

Bubba 9 Inch Flex Fillet Knife

Bubba is a popular fillet knives manufacturer well-known for producing both electric and manual fillet knives.

The 9-inch bubba is a high-end fillet knife used to cut fish of all varieties, and one of the best features is its excellent grip and comfortable handles. The blade on Bubba is made of stainless steel 8Cr13MoV. In the market, it is the best grade since it is corrosion- and rust-resistant. It requires less effort to cut the meat without tearing.

The extra-sharp tip of Bubba makes cutting effortless. The belt loop on the sheath allows you to carry it hands-free. The bright color increases visibility in low light. The light blade design makes this knife easy to handle and it weighs only 0.72 pounds.

Overall, it is a high-quality fillet knife and it is definitely worth buying. 

  • Corrosion and rust-resistant blade
  • Non-slip safety grip
  • Good flex and sharp blade
  • Awesome high-visibility
  • Safety guards for protection
  • Some owners thought it bent too easily, even though it’s a flexible knife

Mercer Culinary Millennia

Mercer Culinary Millennia Black Handle Best fillet knife for saltwater fish

Mercer is the best fillet knife for saltwater fish. The 8” blade is made of corrosion-resistant high carbon stainless steel. For durability and enhanced grip, the textured handle is composed of Santoprene and Polypropylene. The knives come in eight different colors.
The finger points on the handle are textured to provide slip resistance and grip. It also includes a finger guard to ensure safety.
Overall, the Mercer Culinary is a great option. It is a good knife to consider if you are looking for a knife for the money. As Mercer Culinary Millennia doesn’t come with sheaths, you may want to invest in one or store them tightly in storage.

  • Corrosion and rust-resistant blade
  • Non-slip safety grip
  • Available in 8 different colors
  • Doesn’t come with sheaths

KastKing Fillet Knife 9 Inch

Best for Saltwater Fish: KastKing 9-Inch Fillet Knife

The Kastking is famous for manufacturing fillet knives. Unlike other knives, The 9″ KastKing Fillet Knife is thicker and stiffer, making it ideal for big fish like salmon and tuna.

The KastKing uses German Stainless Steel G4116 with a beautiful black finish. Unlike other knives, KastKing knives will maintain their edge longer in fresh and saltwater, making it easier to cut baits, fillet fish of all sizes, steak large game fish, or remove meat and fish from bones.

The Kastking has a comfortable, slip-resistant polymer grip that is also bright, so you will never lose it. The lightweight and budget-friendly knife have a unique design that makes it extremely comfortable to use. In addition, the design of the sheath provides extra security.

  • Non-Slip Super Polymer Grip
  • Comes with Protective Knife Sheath
  • German Stainless-Steel blades
  • Awesome high-visibility
  • Reports of bends

Dexter P94812 Fillet Knife

Dexter P94812 Fillet Knife

For decades, Dexter has been producing the best stainless steel fish filleting knives that chefs and professionals rely upon. The Dexter is a narrow 8-inches fillet knife. 

A nice white polypropylene handle graces the handle of this American-made professional fish fillet knife. The knife remains comfortable even when held for a longer time. The handle will not become damaged because it is dishwasher safe.

With this one, you will be able to manoeuvre easily. This product is popular due to its high quality and affordability. It would be useful to keep a few of these knives on the boat for use. Dexter knives are exceptional, but they don’t come with sheaths. Hard plastic sheaths are perfect and easy to carry on the boat.

  • Stainless Steel
  • Polypropylene handle grip
  • German Stainless-Steel blades
  • Awesome high-visibility
  • Reports of bends

Rapala Fish ‘N Fillet Knife with Sheath

Rapala Fish 'N Fillet Knife with Sheath

If you have a limited budget, Rapala is a good budget filleting knife to consider. It’s well made with high-grade materials and has excellent performance than some of the most expensive knives out there. However, in my opinion, this fillet knife’s price is a bit low for the quality and performance it provides!

The little knife is perfect for filleting fish, whether you’re a youngster or an adult. In terms of durability, it offers longer edge retention than most knives in the same price range. With the included sharpener, you can restore the blade’s ultra-sharp edge with a little effort. 

Rapala is a perfect combination of flex and strength; it is a highly reliable knife for removing silver skins from saltwater catches. Though thin, the blade steel is very durable and lasts for a longer time. It is made of Birchwood and has a comfortable grip and ultimate strength. Besides using it for filleting, you can use it as a paring knife in the kitchen.

Rapala knife comes with a leather sheath, so you can easily carry it in your tackle box. There is even a plastic insert in the sheath to prevent the sharp tip and edge of the blade from damaging it.

  • Stainless Steel
  • Genuine leather sheath
  • Birchwood handle
  • Single stage sharpener
  • No major drawback

Best Fillet Knife For Saltwater Fish Buyer’s Guide

How to fillet a Saltwater Fish? 

With the right fillet knife, you will be able to easily remove the bones and skin from your saltwater fish catches. Follow these instructions to learn how to fillet a saltwater fish.

Step 1: Lay the fish on its side on a flat surface. Cut behind the gills and pectoral fin.

Step 2: If you do not intend to remove the head, slide your fillet knife between the tail and the ribs and make the second cut there. Allow the backbone of the fish to guide your movement. That’s the first cut of the filet.

Step 3: To make your second fillet, flip your fish over and repeat Steps 1 and 2 on the other side.

Step 4: Now, slice away the rib section by placing your knife close to the rib bones. After that, insert your knife about 12 inches from the tail of the fish, with the skin side down. Place your blade at an angle between the meat and the skin while holding the tail. When cutting against the skin, apply pressure and sawing motion. The skin will separate from the fillets.


  1. Fish fillet knives are necessary?

    Yes, fish fillet knives are important, fish fillet knives have a thin, long, and flexible blade that you can easily follow the curvature of the fish and make filleting easy.

  2. What is the best size of a fish fillet knife?

    Fish fillet knives should be about 6 to 7 inches long. A six-inch saltwater fishing knife will handle most types of fishes

  3. What is the ideal thickness of a fillet knife?

    Fillet knives should have fairly thin blades so the blades can bend and flex while filleting. Typically, the thickness ranges between 2.5 and 3.5 mm.

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