How to sharpen hooks

excellent ! dear old Krusty says it all and there’s absolutely nothing i can add except: this is THE way to do it. enjoy !

if you don’t understand the ‘pup tent’ shape, its a triangle. once combined with the inverted pup tent (base to base) it gives us this profile when we look at the hook point straight on: a tilted square. this is the shape we want.
hookpoint shape

(i know, the drawing ***** but i hope you’ll get the point… )