Afilador

[ROBINDESBOIS]

Afilador es una antigua profesión, es la persona que afila cuchillos, tijeras etc...
English- Sharpener ???

[poli]

A knife sharpener would be the devise that sharpens the knife (whetstone for example) I think the person who sharpens knives may be known as a knife grinder. My grandmother called someone who sharpens metal a scissorman. A scissorman may use a bicycle-type devise to sharpen blades. I am not sure if either of these two terms are the official terms.

[hermit]

Yes, "sharpener", as in "knife sharpener"...but as poli said, "grinder" is the common term for the tradesman who does it.