US
KastKing

KastKing Spartacus Fillet Knife

  • Length: 16.9 inches
  • Size: B: 9'' Fillet Knife
  • Material: 8Cr14 Stainless Steel
  • Pieces: 1

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A stainless fillet knife sized for typical fish cleaning tasks, with a sheath included for storage.

As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.

ASIN: B07VQG92XXCategory: Fillet Knives

Overview

A 9 inch fillet knife from KastKing built with an 8Cr14 stainless steel blade and sold with a sheath. It's aimed squarely at cleaning and filleting fish rather than general camp or utility use.

Stainless steel is the practical choice here since fillet knives spend most of their life wet and near saltwater or fish slime. The included sheath covers both blade safety and storage between trips.

  • 8Cr14 stainless steel blade
  • 9 inch fillet knife length
  • Sheath included

Who it's for

Anglers who clean their own catch and want a dedicated fillet knife rather than a general kitchen knife. Less relevant if you're looking for a knife longer than 9 inches for larger fish.

Pros and cons

Pros
  • Stainless steel resists corrosion in wet conditions
  • Sheath included for safe storage and transport
  • Sized specifically for fillet work
Cons
  • 9 inch blade may be short for larger fish
  • No stated blade flex or hardness rating

Performance notes

The 8Cr14 stainless steel is chosen for corrosion resistance around wet, salty conditions, and the knife is sized specifically as a 9 inch fillet blade rather than an all-purpose fishing knife.

Specifications

BrandKastKing
Dimensions & fit
Length16.9 incheshigher than 98% of 45 fillet knives
SizeB: 9'' Fillet Knife
Item Weight0.95 poundshigher than 73% of 46 fillet knives
Construction & materials
Material8Cr14 Stainless Steel
ColorWhite
Included components
Pieces1
Other details
SpecialFillet Knife And Sheath

Closest rivals on specs

Calamus SwiftEdge Fillet Knife Set
  • Item Weight 0.95 vs 1.08 pounds (-12%)
  • Length 16.9 vs 13 inches (+30%)
Rapala Fish n Fillet Knife with Sharpener 6 in
  • Item Weight 0.95 vs 0.42 pounds (+126%)
  • Length 16.9 vs 15 inches (+13%)
BUBBA Tapered Flex Fillet Knife 9 in
  • Item Weight 0.95 vs 0.37 pounds (+157%)
  • Length 16.9 vs 15 inches (+13%)
Compare all side by side

Frequently asked questions

What steel is the KastKing Spartacus blade made from?

8Cr14 stainless steel.

Does it come with a sheath?

Yes, the knife is sold with a sheath for storage.

What is the blade length?

It's built as a 9 inch fillet knife.