Once you try a shark blade on your electric fillet knife, youll never go back to a conventional blade. The American Angler Replacement Shark Blade is an extra-thin, flexible high-performance blade designed to handle high-volume filleting of medium-sized fish such as walleye, crappie, and sea trout. Its unique shape helps dissipate heat and reduce motor strain, prolonging the life of your knife, and makes even the tough cuts easy. The hollow-ground, reciprocating dual-serrated blade set ensures superior precision and maneuverability. Made to fit all American Angler electric fillet knives. Manufacturers limited 1-year warranty. Blade Length: 8. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fillet & Bait Knives.