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I make this knife 8 times sharper in less than 3 minutes!
On the Job
Kitchen Knives
Details
Length
2:42
Views
129,203
Sharpener
Nate Mansfield
Published
Nov 15, 2025
Dull knives?
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About this video
A dull kitchen knife taken to eight times its starting sharpness in under three minutes, with the improvement measured rather than eyeballed.
What you’ll see
A dull kitchen knife is measured, sharpened in under three minutes, and measured again, with the before and after numbers shown on screen.
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