Why one restaurant chef ditched her whet stone for this updated sharpener.

We found a pocket knife sharpener that one reviewer says changed their blades from “ butter knife dull ” to “razor sharp” after one use — and the already affordable gadget is 15% off today.

Most knife enthusiasts have a whetstone or other type of knife sharpener, but a serrated knife requires a specialized ...

For a knife sharpener that’s camping-friendly, pick up the Material Kitchen The Sharpener. It is small enough to fit in a pocket and is $20 at Amazon.