world's tiniest drillOne of the world’s tiniest 3D printers has printed the world’s tiniest cordless drill. It’s less than half the size of your thumb and you can see it in action at

The drill is powered by a hearing aid battery. Its wires come from a headphone cable. Lance Abernethy of New Zealand, its creator, says the hardest part was assembling all the tiny pieces, printed out by the “Ultimaker 2” 3D printer. The wires kept breaking off, nearly short circuiting the battery.

(Of what use is a drill half the size of a thumbnail, you might ask. But when the ants and the fruit flies take over the world, you’ll wish you had paid closer attention.)

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