Speakers

Metric is standard except in the USA.  You need both SAE and Metric in your toolbox here. 

I can’t see the wrench and I tired moving the speaker from side to side with no luck.

So, what were you doing inside the speakers? If you can get inside them, you should be able to find the wrench.

ozzy

I can empathize it happened to me a lot. I also understand it bugs you, like a pebble in your shoe. I would ask a woodworker's advice, they are probably experienced in this. I took my speaker once to woodworker to remove scratches and he was very knowledgeable. Another option a computer repair store, they might have a tiny camera

The speakers are ported from the bottom so I can look down and see into the speakers. I am looking for some advice  to see if I can use the speaker. Thanks for everyone help.