What are Needle Files?

by Sheila Meador.
(Atlanta, Georgia USA)

I was looking online at cup burs and needle files to add to my jewelry tools collection. I’m wondering if there are several ways to use these tools and if I should buy them. I don’t understand how to use the needle files.

Could you explain?

14 gauge wire end Before smoothing with the needle file.

Sheila Meador
Che Che’s