TIL – Most Dental drills are air-turbine powered and can reach speeds of 800,000 rpm http://t.co/oN6UjsVagE

by admin on April 25, 2013

TIL – Most Dental drills are air-turbine powered and can reach speeds of 800,000 rpm http://t.co/oN6UjsVagE

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TIL – Most Dental drills are air-turbine powered and can reach speeds of 800,000 rpm http://t.co/oN6UjsVagE
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