I use an American Angler electric fillet knives. It has held up well. I think I have used it for 5-6 years and no issues yet. I probably clean around 200 walleyes a year or so. Just like stated previously you have to find a blade you like. I actually use the Mister Twister blades in mine. The reason I don't use the Mister Twister knives is the gears go out. I have ran a Bubba blade and I didn't like it.