
Gerber Controller Folding Fillet Knife
The Gerber Controller Folding Fillet Knife puts the same Salt Rx corrosion protection and 9Cr18MoV blade steel as the fixed version into a compact folding design. At 7.25" closed, it fits in tackle bags and boat compartments where a full-length knife will not. Open it up to 13.25" and you have a real fillet knife, not a compromise.
- 9Cr18MoV stainless blade with Salt Rx protection
- Folds to 7.25" for compact storage
- 13.25" open for full fillet work
- Limited lifetime warranty from Gerber
Full Fillet Performance in a Folding Package
Space on a boat is limited. A folding fillet knife earns its spot by fitting where fixed blades cannot. The Gerber Controller folds at the midpoint, cutting its storage length nearly in half without sacrificing blade performance.
The 9Cr18MoV steel and Salt Rx protection are identical to the fixed-blade Controller. You get the same edge retention, corrosion resistance, and flex. The lock mechanism holds the blade firmly open during use. Gerber backs it with a limited lifetime warranty.
The 9Cr18MoV steel and Salt Rx protection are identical to the fixed-blade Controller. You get the same edge retention, corrosion resistance, and flex. The lock mechanism holds the blade firmly open during use. Gerber backs it with a limited lifetime warranty.
Folding Design
Folds at the midpoint to 7.25" for compact storage. Toss it in a tackle bag, boat console, or truck toolbox. The locking mechanism keeps the blade secure during use.
9Cr18MoV Blade with Salt Rx
Same surgical-grade stainless steel and corrosion protection as the fixed Controller. The blade flex is tuned for clean fillets on inshore and nearshore species.
No-Slip Polypropylene Handle
Glass-reinforced construction stays grippy in wet conditions. The ergonomic shape works well for both right and left-handed anglers. Comfortable through extended use.
How to Use a Folding Fillet Knife
- Open the blade fully until the lock clicks into place
- Verify the blade is locked before cutting
- Fillet your fish using standard technique along the backbone
- Rinse the blade with fresh water after use
- Open the knife to air dry before folding for storage
Specs & Common Questions
Everything you need to know before you buy
Full Specifications +
| Brand | Gerber |
| Blade Steel | 9Cr18MoV |
| Protection | Salt Rx system |
| Open Length | 13.25" |
| Closed Length | 7.25" |
| Handle | Glass-reinforced polypropylene |
| Warranty | Limited lifetime |
| Price | $49.99 |
Is a folding fillet knife as good as a fixed blade? +
For occasional use and portability, a folder is very practical. For heavy daily filleting, a fixed blade offers more rigidity. The fixed Controller is better for high-volume work.
Does the folding mechanism feel solid? +
Yes. The lock holds the blade firmly in the open position. There is no wobble or play during use. Gerber backs it with a limited lifetime warranty. See all our fillet knives.
What size fish can I fillet with this? +
Most inshore and nearshore species up to about 10 lbs fillet well. For larger fish like tuna, the fixed 10" Controller or Rigor Scimitar is a better choice.
How do I clean and store it? +
Rinse with fresh water, open the blade to dry fully, then fold and store. Never store a folding knife wet or the pivot will corrode over time. Our gear guide has care tips.
Can I bring this on a boat easily? +
That is the main advantage. At 7.25" closed, it fits in a tackle bag pocket, PFD, or console drawer. Ideal for kayak anglers and wade fishers who need to keep gear compact. Browse our knife selection.
What is the blade length when open? +
The blade is approximately 6" with the knife opening to 13.25" overall. Enough reach for most standard fillet work. For bigger fish, step up to the Gerber Sengyo (9.5" blade).