An electric fillet knife uses a reciprocating blade to cut along fish bones with less hand effort. The first choice is power: a corded 110V plug-in model or a rechargeable cordless one. After that come blade length, how many blades are included and what carrying case or glove comes in the box.
The six knives below cover corded and cordless designs. Dimensions, power and included parts come from each listing page. We have not used these knives ourselves. Motor and runtime figures are the makers’ own.
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What to Look For
| Feature | Why it matters |
|---|---|
| Power | Corded gives steady power; cordless moves anywhere |
| Blades | Length and flexibility suit different fish |
| Cord length | 6 to 8 feet decides how far you can work from an outlet |
| Extras | Cases, sheaths and gloves keep the kit together |
| Cleaning | Removable blades are easier to wash |
Specs at a Glance
| Knife | Power | Blades | Notes |
|---|---|---|---|
| BUBBA 110V | Corded; 8 ft cord | 4 removable coated blades | 8.5 in handle; 1.11 lb; zippered case |
| KastKing Speed Demon 110V | Corded; 8 ft cord; 15,500 rpm | 2 blades | Soft elastomer handle; protective case |
| Rapala Heavy Duty | Corded; 8 ft cord | One 7.5 in serrated blade | Replaceable blade; ergonomic handle |
| KastKing Speed Demon Pro Li | Lithium-ion, 2500 mAh | 2 blades | Up to 1 hour 40 minutes per charge (maker); charger and case |
| Calamus BladeVolt | Cordless; two 2600 mAh batteries; Type-C | 4 blades | 27,000 rpm motor; up to 2 hours per battery (maker) |
| Smith’s Mr. Crappie | Corded; 6 ft cord | 8 in and 4.5 in serrated | Fillet glove and mesh bag included |
The 6 Best Electric Fillet Knives
1. BUBBA 110V Electric Fillet Knife
A corded knife with four removable coated stainless blades, an 8.5 inch handle, an 8 foot cord and a weight of 1.11 pounds. A zippered case stores the blades. The maker offers a limited one-year warranty.
Suits: someone who wants several blades in one case. Strengths: four blades and a long cord. Weaknesses: corded only. Skip it if you work far from an outlet.
View BUBBA 110V Electric Fillet Knife on Amazon
2. KastKing Speed Demon 110V Electric Fillet Knife
A corded knife the maker describes as having a 15,500 rpm AC motor, a small-circumference soft elastomer handle and an 8 foot cord. It ships with two blades and a protective case.
Suits: a slim, light-feeling corded knife. Strengths: a stated motor speed and a small handle. Weaknesses: only two blades. Skip it if you want cordless.
View KastKing Speed Demon 110v Electric Fillet Knife for Fish on Amazon
3. Rapala Heavy Duty Electric Fillet Knife
A corded knife with a replaceable serrated 7.5 inch reciprocating blade, an ergonomic relaxed-grip body and an 8 foot cord. The listing mentions a heavy-duty motor and a dishwasher-friendly blade.
Suits: a simple corded knife from a fishing brand. Strengths: a clear, single-blade setup. Weaknesses: the listing gives few measurements. Skip it if you want spare blades included.
View Rapala Heavy Duty Electric Fillet Knife on Amazon
4. KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife
A cordless knife with a 2500 mAh lithium-ion battery, a thinner TPR handle and an included charger, case and two blades. The maker states up to 1 hour 40 minutes of runtime per charge.
Suits: cordless filleting at a dock or table. Strengths: a charger and case in the box. Weaknesses: one battery. Skip it if you need a second battery.
View KastKing Speed Demon Pro Lithium-ion Electric Fillet Knife on Amazon
5. Calamus BladeVolt Cordless Electric Fillet Knife
A cordless kit with a 27,000 rpm motor, two 2600 mAh Type-C batteries (up to two hours each, per the maker), four blades, a charger and a storage case.
Suits: long sessions with swappable batteries. Strengths: two batteries and four blades. Weaknesses: a larger kit to store. Skip it if you prefer a corded plug-in.
View Calamus BladeVolt Cordless Electric Fillet Knife on Amazon
6. Smith’s Mr. Crappie Slab-O-Matic Electric Fillet Knife
A corded 120-volt knife with a 6 foot cord and two removable serrated stainless blades: a thin, flexible 8 inch blade and a curved 4.5 inch rib-cage blade. Blade sheaths, a fillet glove and a mesh storage bag are listed.
Suits: small fish and rib trimming. Strengths: a short blade for tight spots and extras included. Weaknesses: a shorter cord. Skip it if you need reach.
View Smiths Mr. Crappie Slab-O-Matic Electric Fillet Knife on Amazon
Care and Setup
- Remove the blade and wash it as the listing directs.
- Dry blades fully before storing.
- Charge cordless batteries before a long session.
- Keep the case and sheaths with the knife.
Mistakes to Avoid
- Buying corded when you work far from power.
- Ignoring blade length for the fish you handle.
- Skipping a spare battery on long sessions.
- Storing blades wet.
Electric Fillet Knife FAQ
Corded or cordless?
Corded models here use 6 to 8 foot cords. The Speed Demon Pro Li and the Calamus run on batteries.
Are blades replaceable?
Often. The BUBBA, Rapala and Smith’s listings describe removable or replaceable blades. Check the others.
The Short Version
For four blades and a case, the BUBBA. For a slim corded knife, the KastKing 110V. For a simple single blade, the Rapala. For cordless with a charger, the KastKing Pro Li. For two batteries, the Calamus. For small fish and ribs, the Smith’s.