The Secrets of Tool Sharpening

To get the best performance possible from the bladed implements in your kitchen and workshop, here is how MOTHER EARTH NEWS' researchers go about the job of tool sharpening.

070 tool sharpening - filing a taper
The taper is filed onto a kitchen knife with a fine-toothed instrument (note hand guard on file). Only one stroke is made per side before turning the blade over.
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