<![CDATA[io9: big giant machines]]> http://tags.lifehacker.com/assets/base/img/thumbs140x140/io9.com.png <![CDATA[io9: big giant machines]]> http://io9.com/tag/biggiantmachines http://io9.com/tag/biggiantmachines <![CDATA[Train-Sized Drill Eats Through Earth and Concrete]]> Last month in Leipzig, Germany, the world's most enormous drill bit emerged from this wall. It was boring a subway tunnel. Want to see the drill up close?

Here's a close-up of the massive drill head. This is one of those moments when it is perfectly appropriate to exclaim: "DUDE!" You may also slap your head, or the head of the person next to you. closedrill.jpg Photos by Sebastian Willnow/AFP/Getty Images.

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