This knife is for use with Smith's Sharpeners electric fillet knives (AC51207 or AC51233). It has two fully serrated interlocking 420 stainless steel blades with plastic blade protectors, ideal for long fishing trips. Whether you're tackling tough scales or delicate fillets, this knife delivers precision and durability. Enhance your gear with this top-notch pocket knife designed to meet every angler's needs.