Wusthof Classic Ikon Knife Sharpener

While designed by Wusthof, this sharpener works on most standard kitchen knives. It is suitable for double-beveled blades, but it is not intended for single-beveled Japanese-style knives or serrated blades.

The system uses two distinct slots to refine your blade. The first slot features diamond-coated rods to reshape and sharpen dull edges, while the second slot uses ceramic rods to hone and polish the edge for a smooth, clean cut.

No, that is the main benefit of this design. The built-in guided notches automatically hold your knife at the correct angle, removing the guesswork and steady-hand requirement associated with traditional whetstones.

This pull-through sharpener is excellent for routine maintenance on standard kitchen cutlery. However, if you own very high-end, custom, or extremely hard-steel knives, you may prefer a whetstone to have more control over the amount of metal removed.

You don't need to use it every time you cook. A few passes through the ceramic (fine) slot every few weeks is usually enough to keep your knives performing well, while the diamond (coarse) slot should only be used when the blade feels noticeably dull.