It's possible they're digging
with industrial MACHINERY.
Money Heist Season 3, Episode 8
And doesn't require outside MACHINERY
to be built to access it.
The Big Bang Theory Season 8, Episode 21
(MACHINERY WHIRRING)
Westworld Season 3, Episode 8
...and you don't want someone like that
operating heavy MACHINERY.
The Big Bang Theory Season 3, Episode 11
They are working with heavy MACHINERY.
Indeed, they’re building a tunnel.
Money Heist Season 1, Episode 11