First part is really good info, second part is........ Well at least the "machined" hole is beautiful...... http://www.youtube.com/watch?v=CR1DwmQEgL0
Great find. I think he milled the hole with a hammer. Good stuff though, and I agree with soldering and epoxying the thing closed since there really isn't anything serviceable in there. The Canadian BEC was another nugget of good information.
Tyson - There is a product here for you and I don't mean the little copper button. Nicely done video. I really liked that hole to. ...Tiger