When you need to fillet fish, count on the Mister Twister Electric
Fisherman. Serrated, double-action blades are extra-sharp stainless steel
for precise and easy filleting. Replacement Blades: 7" or 9".
These blades make quick work of cleaning fish. I also like the design better now that they're pointed on the ends which makes it easy to exit the fish near the vent.