KastKing Speed Demon Pro Fillet Knife
- Fillet Knife
- 1
- Orange
- 4.08 pounds
A long bladed fillet knife with a wet grip TPE handle, worth considering if you regularly fillet larger fish and want reach over a short utility blade.
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How it ranks among the 74 fillet knifes we track
4.4★ across 209 Amazon ratings, Bayesian-smoothed toward the category average.
209 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ 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: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Speed Demon Pro is KastKing's fillet knife with a 16.5 inch overall length and a molded TPE handle for grip when hands are wet. It ships in orange for visibility around a boat deck, and the listing counts it as a single piece.
At 16.5 inches overall, this leans toward the longer end for fillet knives, useful for breaking down larger fish where a shorter blade would run out of length. The 1.85 kilogram listed weight is heavier than a typical single fillet knife, which suggests the figure covers the knife along with any included sheath or case rather than the blade alone.
- 16.5 inch overall length
- TPE non-slip handle
- Orange color for visibility
- Sold as a single piece
Who it's for
Anglers who clean larger fish species and want a longer blade span. Also suits anyone who prefers a soft grip handle over a bare polymer or wood one, since wet hands stay steadier on TPE.
Strengths and trade-offs
Drawn from this product's published specifications.
- Long 16.5 inch blade for larger fish
- TPE handle grips even when wet
- High visibility orange color
- Length may be excessive for small fish
- Listed weight suggests a case is included, not confirmed
Performance notes
The TPE handle is designed to stay grippy even when coated in fish slime or water, which is the main failure point of hard plastic handles. Blade length at 16.5 inches gives more reach for long fillet strokes on bigger fish, though that same length can be harder to control on small species.
Specifications
| Brand | KastKing |
|---|---|
| Pieces | 1 |
| Material | Thermoplastic Elastomers (TPE) |
| Color | Orange |
| Item Weight | 4.08 pounds |
| Length | 16.5 inches |
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 Speed Demon Pro Fillet KnifeThis product | 4.4 / 5 | 209 | 4.0 / 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 |
Similar fillet knifes from other brands
Questions about the KastKing fillet knifes
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How long is the KastKing Speed Demon Pro fillet knife?
It measures 16.5 inches overall.
What is the handle made of?
A thermoplastic elastomer (TPE) handle, intended to stay grippy when wet.