Loon Outdoors Hook Hone.
For sharpening hooks (in the event you don't want to miss fish)
Fact: you're more likely to cut yourself with a dull knife. Another Fact: you're more likely to miss fish with a dull hook. Think about it: your fly has a ton of opportunities to become dulled even if the hook was sharp when it left the manufacturer. Why not put your fly in the best condition to catch