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Carbon
steels
Stainless mainstream (e.g. kitchen & butcher knife)
High-end and tool steels
Ceramic
Folding knife
Japanese single-bevel
Cleaver
Convex blade
Concave & Recurve blade >
Straight edge, sheepsfoot
Serrated knife
Scissors
Hatchet, tomahawk & axe
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Concave & Recurve blade
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Concave
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Recurve
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The key to
a perfect concave edge is to grind at the same line of contact (LOC) with
the grinding wheel along all the length of the blade. We use our Round-edge CBN Wheels for concavities, and a laser guide to mark the LOC across the grinding wheel; but a stone wheel with smoothed corners can be used as well.
We grind concave and recurve blades using a lockable Pivot Collar placed on the knife jig, manufactured for us by special order - this collar provides for uniform bevels and accurate apexing on blades with complex curves (karambit, persian, kukri, fighting knives, etc).
In many cases sharpening away from the grinding wheel, edge-trailing, provides for better control and grinds nicer bevels.
Use our
Frontal Vertical Base for sharpening away from the wheel.
Video Concave Knives >>
Recurve Knives (S-edge)
Video Recurve Knives >>
Curved to the guard, recurve and Karambit
Sharpening curved knives on our CBN wheels >>
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