KastKing Fishing Knives-3 Fillet Knife
- Fillet Knife
- 1
- Super Polymer Grip
- C: 7'' fillet Knife
- More reviewed than 96%
A 7 inch fillet knife with a super polymer grip and an included sheath, sized for typical panfish and mid-size freshwater cleaning rather than large saltwater species.
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How it ranks among the 74 fillet knifes we track
4.6★ across 2,700 Amazon ratings, Bayesian-smoothed toward the category average.
2,700 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 74 fillet knifes we track - how the scorecard works · full fillet knifes data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
KastKing's Fishing Knives-3 is a 7 inch fillet knife with a super polymer grip handle, built for cleaning panfish through mid-size fish and shipped with a matching sheath. At 6.4 ounces it stays light through repeated cuts at the cleaning table.
The listing notes it comes as a knife and sheath set, which matters because a fillet blade left loose in a tackle box dulls fast and risks a cut hand. A 7 inch blade sits in the middle of the fillet size range, long enough for panfish through walleye and bass without the extra flex of a longer blade meant for bigger saltwater fish.
- 7 inch fillet blade
- Super polymer grip handle
- 6.4 ounce weight
- Includes matching sheath
Who it's for
Anglers who clean their own catch at the dock or kitchen counter and want a dedicated blade instead of a kitchen knife. Less suited to anyone targeting large saltwater species that call for a longer, more flexible blade.
Strengths and trade-offs
Drawn from this product's published specifications.
- Sheath included for safe storage
- Light at 6.4 ounces for extended use
- Grip designed for wet handling
- No stated blade steel type
- 7 inch length may be short for larger fish
Performance notes
The super polymer grip is meant to stay usable when wet or slick with fish oil, the common failure point of cheaper handles at the cleaning table. A 7 inch blade gives enough reach for a smooth single pass fillet cut on typical catch sizes without the whip of a longer blade.
Specifications
| Brand | KastKing |
|---|---|
| Model | Fishing Knives-3 |
| Dimensions & fit | |
| Item Weight | 6.4 ounces |
| Length | 12.8 inches |
| Size | 7 inches |
| Construction & materials | |
| Material | Super Polymer Grip |
| Color | C: 7'' fillet Knife |
| Included components | |
| Pieces | 1 |
| Other details | |
| Special | Knife and Sheath |
Other KastKing fillet knifes
How it compares
This product against the closest alternatives we track in fillet knifes.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| KastKing Fishing Knives-3 Fillet KnifeThis product | 4.6 / 5 | 2,700 | 4.4 / 5 |
| HOSHANHO 7 inch Fillet KnifeHOSHANHO | 4.7 / 5 | 3,900 | 4.5 / 5 |
| BUBBA 1095705 Fillet KnifeBubba | 4.7 / 5 | 6,300 | 4.4 / 5 |
| Rapala BPFNF6SH1 Fillet KnifeRapala | 4.7 / 5 | 2,300 | 4.3 / 5 |
| WORKPRO W125223AE Fillet KnifeWORKPRO | 4.7 / 5 | 828 | 4.4 / 5 |
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Questions about the KastKing Fishing Knives-3
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the KastKing Fishing Knives-3 come with a sheath?
Yes, the listing specifies a knife and sheath set.
How long is the blade on this KastKing fillet knife?
It is sized at 7 inches.
How much does the knife weigh?
6.4 ounces.