Product Reviews > Kitchen > Fillet Knives > 

KastKing Flexible Serrated Fillet Knife, 9-Inch

Last updated: August 2, 2022


This fillet knife is crafted with a sharp stainless-steel blade, and has a polymer grip non-slip handle for safety and comfort. The blade of the knife has a unique black finish, and comes with an open-slot sheath. However, it does not include a sharpener.

KastKing Flexible Serrated Fillet Knife, 9-Inch
Buy Now

We looked at the top Fillet Knives and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Fillet Knife you should buy.

DEAL
KastKing Bait Knife and Fillet Knife, Boning and Food Prep Knives, 9 inch Fillet Knife

KastKing Bait Knife and Fillet Knife, Boning and Food Prep Knives, 9 inch Fillet Knife
BUY ON AMAZON
$23.99
$29.99

Product Details

Key Takeaway: This fillet knife is perfect for the kitchen and the outdoors.

In our analysis of 128 expert reviews, the KastKing Flexible Serrated Fillet Knife, 9-Inch placed 8th when we looked at the top 14 products in the category. For the full ranking, see below.

From The Manufacturer

KastKing fillet knife 11 1 5” Versatile Knife – Fixed Blade The 5” versatile fixed-blade outdoor knife is stiff and strong, it has a serrated top edge that makes cutting frozen bait or wood quick and easy. The razor-sharp leading edge allows the fisherman to easily prepare both chunk and cut plug style baits. 1 5” Versatile Knife 11 6”, 7” & 9” Fillet Knives 1 9″ Strong Fillet Knife 1 12” Slicing Knife 1 6”, 7” & 9” Fillet Knives – Flexible Blade The Razor Sharp, Flexible and Curved Blade for perfect filleting fish, boning meet and processing any food . All These KastKing professional level knives will provide years of service and will quickly become your favorite tools. 11 Why KastKing knives are worth having? Razor Sharp Black, G4116 German Stainless Steel blades are razor sharp and maintain their edge for easy boning and filleting. Good Value 1.Includes a durable knife sheath to keep your blade safe and ready to go to work. 2.G4116 German Stainless Steel blades . 3.We use the most comfortable and slip-resistant, Super-Polymer grips for your safety and comfort. Professional Level Knives All These KastKing professional level knives will provide years of service and will quickly become your favorite tool for filleting fish, boning meet and processing any food. Razor Sharp German Stainless Blades Non-Slip Super Polymer Grip – comfortable to hold Includes Protective Knife Sheath Affordable Innovation 1 1 3 1 1 Click here for details Click here for details Click here for details Click here for details Click here for details Essential gear for angler Fillet knife sharpener Fishing pliers Fishing Braid Line Scissors Fishing scale Tackle Bags

Buy Now

Our Expert Consultant

Julie Chernoff
Culinary Expert

Julie Chernoff is a long-time member of Les Dames d’Escoffier (past president of the Chicago Chapter, and current co-chair of the LDEI Legacy Awards Committee), the Association of Food Journalists (AFJ) and the International Association of Culinary Professionals.

Chernoff is the dining editor of Better, a lifestyle website and print magazine. Her journalism started in the test kitchens of Weight Watchers Magazine. She holds a BA in English from Yale University and is a graduate of the California Culinary Academy. She has spent the last few decades styling, photographing, teaching, developing recipes, editing, thinking and writing about food.

Expert Reviews


What reviewers liked

The blade itself is razor-sharp with awe-inspiring edge retention and quality G4116 German stainless steel. To keep your knife sharp and safe, a sheath with slots is provided, which stays snug on the knife, making it suitable for taking on camping or fishing trips.
- Daring Kitchen
Crafted with a razor sharp stainless steel blade, this professional knife can be used for filleting and boning with no restrictions or limitations to speak of. At the same time, the knife benefits from a non-slip handle and an included protective sheath for good measure.
- Noble Rate
KastKing fillet knives feature blades that are extremely sharp, durable, and flexible, making them ideal as a high use fillet knife for anglers.
-
The beautiful black finish enhances the appearance while at the same time ensuring that the product is resistant to corrosion and rust.The super polymer grip is non-slip thereby providing users with a firm and secure grip when filleting meat.
- Knives Sensei
This model is made with a slip-resistant super polymer grip and a 9-inch blade made from German stainless steel that will slice through just about anything.
- Savant Magazine
The handle is special. First and most importantly, the handle is comfortable to hold. It is very easy to clean, and it offers an immense level of grip. All of that we like, and we pay close attention to each factor.
- Knife Guides
This Fillet Knife consists of a razor-sharp high quality german stainless steel blade. Its high precision blade helps us to fillet fish with its optimum sharpness and naturally slides through the flesh making it easier for us to fillet the fish.
- My Cooking Town
The no-slip polymer grip handle will keep the knife in precision cutting mode even when the fish slime tries to do it’s thing. In addition to not slipping, it’s going to remain comfortable in those situations where you have lots of catfish to fillet..and let's be honest...
- Fishing Skillz
The blade comes razor sharp, making it one of the sharpest fillet knives on the market. The edge is easy to maintain and the stainless steel material ensures durability. The G4116 German stainless steel is also stylishly designed and comes with a black finish, giving it a catchy look.
- KayakFisherly
Each blade comes equipped with a non-slip polymer grip and a lockable sheath.
- Global Fishing Reports
The knife is comfortable to hold while working or not. It is slip resistant which allows for a Super firm grip to ease your work and helps you to be comfortable while working.
- Top10den
The 6”, 7”, and 9” blades are all very flexible, razor sharp and have curved blades that are prefect for filleting fish, processing any food and deboning the fish. All of these incredible knives by KastKing will give you years of great fishing trips and service. This knife might end up being one of your best friends.
- Stats Pros
I find the look of this blade is quite amazing. That black G 4116 German stainless steel with orange handle looks so cool and futuristic. And don’t let the look deceive you. This knife can keep on going for a long time without losing its edge.
- Top Review Geek
All models come with a grippy polymer handle and a sheath that prevents moisture from building up on the blade.
- Camperville
KastKing fillet knives characteristic blades which are extraordinarily sharp, sturdy, and versatile, making them best as a excessive use fillet knife for anglers.
- Survival Skillz

What reviewers didn't like

However, it is available only in orange color, which may be an issue for some of you.
- Knife Guides
Although being made up of non-sticky polymer handle, while becoming wet it can sometimes slip away.
- My Cooking Town
Does not come with a sharpener.
- KayakFisherly
Doesn’t feature a safety lock.
- Top10den
Needs frequent sharpening.
- Top Review Geek

Fillet Knife Rankings

Rapala Stainless Steel Fillet Knife, 6-Inch

1. Rapala Stainless Steel Fillet Knife, 6-Inch
Bicico Textured Nonstick Fillet Knife, 6-Inch

2. Bicico Textured Nonstick Fillet Knife, 6-Inch
Victorinox Ergonomic Swiss Fillet Knife, 6-Inch

3. Victorinox Ergonomic Swiss Fillet Knife, 6-Inch
Rhinoreto Rubber Handled Curved Fillet Knife, 5-Inch

4. Rhinoreto Rubber Handled Curved Fillet Knife, 5-Inch
Calamus Lightweight Razor Sharp Fillet Knife, 9-Inch

5. Calamus Lightweight Razor Sharp Fillet Knife, 9-Inch
KastKing Ceramic Finish Non-Slip Fillet Knife, 9-Inch

6. KastKing Ceramic Finish Non-Slip Fillet Knife, 9-Inch
WÜSTHOF Traditional Anti-Rust Fillet Knife, 7-Inch

7. WÜSTHOF Traditional Anti-Rust Fillet Knife, 7-Inch
KastKing Flexible Serrated Fillet Knife, 9-Inch

8. KastKing Flexible Serrated Fillet Knife, 9-Inch
Mercer Culinary High Carbon Steel Fillet Knife, 8-Inch

9. Mercer Culinary High Carbon Steel Fillet Knife, 8-Inch
DALSTRONG Pakkawood Professional Fillet Knife, 7-Inch

10. DALSTRONG Pakkawood Professional Fillet Knife, 7-Inch
Rapala Molded Long-Lasting Fillet Knife, 7.5-Inch

11. Rapala Molded Long-Lasting Fillet Knife, 7.5-Inch
imarku Thin Slicing De-Boning Fillet Knife, 6-Inch

12. imarku Thin Slicing De-Boning Fillet Knife, 6-Inch
Fish Elite 9 Inch Fillet Knife

13. Fish Elite 9 Inch Fillet Knife
Chicago Cutlery Tapered Contoured Fillet Knife, 7.5-Inch

14. Chicago Cutlery Tapered Contoured Fillet Knife, 7.5-Inch
View our Fillet Knife buying guide for in-depth advice and recommendations.

From our partners