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 8 filing a screwdriver
A screwdriver that has been hollow ground against the rounded form of a caster is able to grip a fastener much more securely.
MOTHER EARTH NEWS STAFF