3mm brass tube 'cap'

In search of a 3mm brass tube 'cap'. 

One of my eBay carbs has crack on the brass choke plunger tube.

Did research from here, apparently a 3mm ID brass tube will 'sleeve' it.

But the restrictor jet is missing, Scotch had a post saying it was 0.010" ID

So looking for a 3mm ID cap that can be be soldered on then drilled to 0.010".

Found this post from KB that says .020

Been looking all day, no luck.

Did find this..
www.leathercordusa.com/product/S6003AB.h...XLtkOndUAM4YgUglVLTJ
 
which could be brazed and drilled.

Any other ideas?

D 

 

It's .030" / .77mm