In our modern age of high-tech tools, it's easy to forget the ingenuity of past. The manual rock drill, was an ingenious invention that changed industries before steam or electricity were.
The manual rock drill had a crank that workers would twist and turn to power the drill. The drill has gears to help rotate the drill bit, and allowed for much more force to be distributed throughout the entire piece. While still taking hours, mining and tunneling industries were changed dramatically with this new invention.



Comments
Post a Comment