Found this interesting article on Bill Ruger and how his firearm company was formed, making tools before he developed his first handgun. His hand drill design certainly echoes the modern handheld power drill.
https://www.thetruthaboutguns.com/2016/10/logan-metesh/guns-rugers-hand-drill/
https://www.thetruthaboutguns.com/2016/10/logan-metesh/guns-rugers-hand-drill/
