Knife sharpening closeup - GIF

[Altair]

Knife sharpening closeup.



Previously:

Japanese knife edge shaping tool - GIF
Hydrophobic knife cutting droplet - GIF
Vintage treadle wheel powered knife sharpener - photo
Knife cutting competition - GIF
Knife making billet divider - video

[hemmjo]

That is a quick way to sharpen one, but also a quick way to wear the blade away. You don't remove near that much with each sharpening with a steel or stone. You get a sharper edge also with a stone. Assuming you know what you are doing.

[Hans Pearson]

How to destroy a perfectly good knife.

[Frank S]

If you can create curled swarf from your blade then the knife is too soft to be of much use anyway

[NeiljohnUK]

I 'steel' my kitchen blades after using a Tormek to correct them usually, these 'sharpeners' are fine for severely damaged blades and cheap pocket knives.