People have the wrong ideas about knives. A knife doesn’t cut like a razor or a plane iron on the push stroke. It’s somewhat like a saw with teeth that cuts in a sliding motion as it’s pushed or ...

Tools lose their edge and become dull. That’s a fact of their existence. But it’s also a fact that they need not stay that way. Sharpening nearly anything, from a shovel to a putty knife to a plane to ...