How to sharpen tweezers?

[OM2]

I saw a few YouTube videos about sharpening tweezers.
I looked for a 'tweezer sharpener'
The top result is a small thing about 5cm wide. It costs £20 ‍‍

Erm... Surely there has to be a cheaper alternative?

Some videos say just use a nail file to sharpen.
I tried. It made the nail file blunt.

I'm guessing a knife sharpening stone?
Ideally I need something small.

Not a mission critical question. LOL
Thanks.

 

[foxhole]

Why do you want sharp tweezers ?

 

[freddiemercurystwin]

A small fine file I should imagine.

 

[mattylad]

Perhaps use one of these:
https://www.ebay.co.uk/itm/282756593556?hash=item41d59b3794:g:0rgAAOSwo4pYcPAi

OR one of these:
https://www.ebay.co.uk/itm/402993653913?hash=item5dd44b2899:g:i1MAAOSwy8Bg729A

Or one of these:
https://www.ebay.co.uk/itm/164946024432?hash=item26678c97f0:g:HsIAAOSwwY9bcObP

And lots of elbow grease (original only - not the degreaser)

 

[OM2]

@foxhole for plucking hairs
In 20 years of marriage, my wife taught me one single thing: plucking hairs. LOL
Look in the mirror and you'll look fine.
Next day: there's a damn little hair sticking it's butt out and shouting to the world!
You need a sharp tweezer.
Tweezers get blunt after sometime.
Getting hold of tiny hairs is pretty hard with a blunt tweezer.
You asked. So I answered. ‍‍

A file would be the same as a nail file - would ho blunt. Just guessing.

@mattylad you're a hero
Those links look great. I'll buy one of those.
Thanks.

 

[foxhole]

None of my wife’s tweezer are sharp , they have a rough surface to grip hair.