Making stem of extension wand thicker?
 

I have an extension wand for fluid film but the stem is 2.8 mm where there is hole on can 3,3mm. Is it possible to make the stem thicker?

https://cimg3.ibsrv.net/gimg/acurazi...117da99d2f.jpg
https://cimg5.ibsrv.net/gimg/acurazi...709147503d.jpg

https://wranglertjforum.com/threads/...ay-wand.68734/ It is well known problem. FF, Surface shield etc do this on purpose so you buy their expensive paint guns. Edit. Obviously, the guy in link does not understand that leaking comes from to narrow stem not from notch but it fixed to narrow stem with that sleeve.

One day someone will find phaggot who on purpose make stem of wands thinner than need and it will not finish well for him. Imagine idiot who think "yeah I go make stem 2.9mm so people who use cavity wands get ff all over them ahahaha". Millions of people get filthy because of him. Will you tell me that someone who is responsible to making spray cap for wand do not know something that I figured out with micrometer in 30 seconds?