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Pros: None
Cons: Effectiveness, Overall Quality
Not worth it. Buy the diamond set.
So I've been using this to sharpen Opinel inox (ie stainless) blades and used Hart brand razor blades. The xxc diamond stone works just fine but the ceramic stones just smoothen up after a couple of uses and don't seem to want to clean up with Barkeepers Friend (ie oxalic acid). The hard arkansas stone seems more like a soft arkansas stone to me.. The handle and stone holder and clamp etc work just fine too. And as a bonus half the oil in the bottle they include leaked into the box, so no worries about corrosion!