Removal of the plastic M10 plug on Nauticam housing - how??

Hi all,

Next newbie question!

I have purchased the M10 strobe mounting ball for my Nauticam NA-D7100 housing. I have seen a couple of helpful "how to install" guides on the net and realise that I do not have the plastic plug removal tool... these things seem impossible to remove and after a good hour or so yesterday I gave up on both sides!

Can anyone suggest a good method? my fear is damaging the plug and failing to remove it which would mean the handle cannot be attached to it anymore.

I have searched these forums and found similar topics, but no clear instructions on how to remove the plug without the tool that I do not have.

Any suggestions welcome. Thank you!

Go to here:

http://reefphoto.com/kb.php?id=51

Go to here:

 

http://reefphoto.com/kb.php?id=51

Thanks. I also found their "how to" guide which is great.... I just wish mine was as easy to twist and remove.