When fishing in Alaska for salmon I carried a Lansky ceramic - diamond rod box in my backpack. Great for tuneups and rods stored in a wood box. I made my filet knife out of CPM-M4. Rockwell 65C. Did tons of fish between tuneups. Not loaning it to my buddies was key to edge retention! The stainless filet tables on the Russian River are hard on knifes.
