Helps to restore an edge

Reviews: FISKARS 40127097 RollSharp Knife Sharpener

The Fiskars "roll sharp" is very inexpensive and well made given the plastics used in its constructions. My unit is Made in Finland as many Fiskars products use to be before they opened their Chinese factories.

I think I prefer tools that you run over an upside down knife (Accusharp, Norton) rather than push into the sharpener. One exception to this view would be the Chef's Choice motorized sharpeners. However, the Accusharp creates a 20 deg. edge which is problematic for Japanese cutlery.

I bought this sharpener for a Mac knife with 15 deg edge because it was recommended by the mfgr. I tested it on a well used knife and while it restored the edge after several strokes through the ceramic wheels, the edge is still far too rough as seen through an eye loupe. A polishing step is definitely required afterwards and I think it should have a 2nd set of smoother ceramic wheels.

A knife run through this sharpener will cut through newsprint but there is still some hesitation compared to factory sharp which simply slices through with complete ease.

A very light touch will probably just hone the edge restoring the cutting performance after so many uses against the cutting surface.

I'm not confident that running a brand new razor sharp Mac knife (MSK-65) through this Fiskars sharpener won't dull it somewhat as the ceramic wheels are partially serrated.

See this video showing the sharpener in action:

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(To open the clear cage to access the sharpening wheels release the catch on the underside).