I don't know about there being an ultimate unit of sharpness. I think that would all depend on the materials in question. Any one material which is harder than another should have the property to ...

Whether you're a knife sharpening beginner or expert, there are a few tips steps that are unique to sharpening pocket knives.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The Tools You’ll Need How to Tell When to Sharpen a Mower Blade How Sharp Should a ...