"DoN. Nichols" on 26 Jul 2016 04:43:37 GMT
typed in rec.crafts.metalworking the following:

Or look into a portable mill setup.

I have a strong box which I thought I lost the keys to. If I
couldn't get it opened by a locksmith - that was the sort of route I
was figuring I would be taking.

If you still have it -- check whether there are fat bolts which
are operated by the locking mechanism. That might make full destruction
the main choice. :-)

A simple fireproof box, all it had was a strong latch.

And the security file cabinets come with labels specifying how
long they protect against various things, including "manipulation of the
lock" and "fire". But the fun one was "0 man-minutes against forceable
entry". (Explosives, I presume. :-)

Enjoy,
DoN.
--
pyotr filipivich
"With Age comes Wisdom. Although more often, Age travels alone."