Choosing the length of your fillet knife shouldn't be stressful. What you need to consider when choosing is what size fish are you going to use this knife for? If you plan on fishing for mahi, choose the 9 inch blade. Or maybe you live in the north and you're going bass fishing, in this case choose the 7.5 inch blade. Going even smaller? If you're fishing for perch, go with a 6 inch blade.
Every fisherman's goal at the end of the day is to fillet their fish with the smallest amount of meat waste possible, right? To limit your amount of meat wasted, you need a thin and flexible blade. This will allow you to maneuver the knife around the bones with maximum control. A non-flexible, thick fillet knife will make a great bait knife, and chopping knife. Needless to say, you won't want to forget either type of fillet knife on your next fishing trip. And let's not forget, the sharper the blade the better- please choose a quality steel blade that will stay sharp long after you buy or sharpen it.
The grip and handle to blade seal are both important factors when choosing a fillet knife. You want a comfortable, easily gripped handle when you're filleting dozens of fish at the end of a fishing trip. For maximum comfort and quality, we recommend both the Sani-Safe and the SofGrip line from Dexter Russell Cutlery. The Sani-Safe handle is textured, slip-resistant, will withstand high or low temperatures. The SofGrip handle offers ultimate grip and control, its soft handle makes it a perfect choice for those with carpal tunnel syndrome or other wrist injuries. Both the SofGrip and the Sani-Safe lines have earned the NSF seal which promises an impenetrable blade to handle seal. This is important so sea water and fish don't create unpleasant odors between the blade and handle.
A great fillet knife has to be paired with an equally good sheath. After all, you don't want to walk out the door without it. A fillet knife sheath should be made of sturdy plastic so it is easy to clean, and durable in the roughest of waters. Ensure the sheath is properly going to fit your fillet knife so you don't damage your blade or yourself. Lastly, so it goes where you do, make sure you choose a sheath with a handle on it so you can clip it to your pants for easy and safe access.