How to adjust the clasp on my Jubilee bracelet?

Hi everyone,

I’m new to watches and recently shortened my Jubilee bracelet by removing all the links I possibly could. It’s still just a bit too loose, and I’m losing my mind trying to fix it.

I noticed there are tiny holes inside the clasp (pictures attached), but the spring bar doesn’t seem to have an external hole to move into for micro adjustments. Is there a way to adjust this clasp further? Or am I out of options without replacing the clasp?

Any advice would be greatly appreciated! Thanks in advance.