Glossary of Sharpening Terms

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Types of Edges

Straight or Flat Grind

Convex

Concave


Terms Used in Sharpening

Burr: In engineering, a burr refers to the raised edge on a metal part. It may be present in the form of a fine wire on the edge of a freshly sharpened tool or as a raised portion on a surface, after being struck a blow from an equally hard, or heavy object.' A burr, also called a wire edge, is created as a result of sharpening metal. The burr forms on the edge of the knife where the planes of the bevels (or, in the case of one-sided knives or chisels, the plane of one face and the bevel) intersect. The diagram below shows the burr projecting from the edge of the knife:

Knife edge with burr.gif


Edge Leading:

Edge Trailing

Parts of a Knife

Tip

Heel

Ricasso

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