News1 min ago
Well Im Impressed!
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For more on marking an answer as the "Best Answer", please visit our FAQ.They talk about silenced pneumatic drill . That's nonsense they can be muffled to a certain extent but it's not just the drills that make the noise it's
the concrete breaking up which creates the most sound . Looking at the fine smooth holes, that was done using using fine diamond tipped drills and there must have been plenty of noise albeit muffled by the fact it was undergound. What is more in the vault there should have been proximity sensors but apparently nothing was detected. I would say they must have had some insider information.
the concrete breaking up which creates the most sound . Looking at the fine smooth holes, that was done using using fine diamond tipped drills and there must have been plenty of noise albeit muffled by the fact it was undergound. What is more in the vault there should have been proximity sensors but apparently nothing was detected. I would say they must have had some insider information.