Choosing a tool or system with a convex (convexe) profile offers several distinct advantages over standard flat or hollow grinds:
: Traditional honing steels can sometimes flatten the delicate curve of a high-quality convex edge; ceramic rods or strops are generally preferred. Kn5convexe Best Repack kn5convexe best
: Many high-end Japanese makers use a "Hamaguri-ba" (clam-shaped) edge, which is a true convex grind. These are considered the gold standard for precision slicing. Choosing a tool or system with a convex
: Many professionals use a "slack" belt sander that naturally conforms to the convex shape of the blade. kn5convexe best
To keep a convex edge at its best, traditional flat-stone sharpening may not be sufficient.