Electric filet knife blades

I have the Rapala filet knife and it’s fine but it seems like I’m having to order new blades for this thing all the time. And it’s not like I catch that much fish. Are there any compatible replacement blades that hold their edges better or do I just need a different knife altogether?

The bubba blade is the bomb the trigger is a little to get use to but worth it throw the blades that come with it away and get the mister twister blades but take the black guards off so it can cycle fully or u will burn it up

I have Bubba Blades and American Angler Ultra. Both are very good.

This exactly. The blades that come with it are too thick.