Enjoy fast, effortless cuts every time with the Berkley Deluxe Electric Fillet Knife. The two precision-ground 420C stainless steel blades with serrated edges easily interchange and resist corrosion for years of use. 6 blade has a Rockwell hardness of 49, the 8 blade has a hardness of 48. Side release buttons on the plastic handle prevent accidental blade release during operation. Auto-lock ensures the blade seats correctly. Includes a 110-volt standard plug, 12-volt vehicle plug, battery clips and carry case. Type: Fillet Knives & Combos.