The tester buys a very cheap kitchen knife (less than $2) and then sharpens it using two different sharpeners, a pull-through type for one sharpener and then using stones for the second sharpener.
Questions:
The results may be surprising to some...
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Some thoughts.
Questions:
- Will the cheap steel make it impossible for the knife to hold an edge?
- Will the sharpener type make a difference in the sharpness of the knife?
- Will the sharpener type make a difference in the edge holding ability of the knife?
The results may be surprising to some...

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Some thoughts.
- The guy could be a bit more rigorous in controlling his tests, but I think he's careful enough that his results are valid.
- I wish he had tested a number of different cheap knives to get more of a feel for what's on the market to see if he might have gotten different results with different types of cheap knives. That said, even without a bunch of knives tested, the outcome was pretty convincing.
- I was impressed that he did an RC hardness test on the knife--and the results provide good evidence for the cheapness of the knife and the low quality of the steel. So it wasn't that he accidentally got a good knife that just happened to be really cheap. The hardness test confirmed that the blade steel was quite soft.