Electric drill
device · 1895 · Electric age
An electric tool for drilling (Wilhelm Fein, 1895).
What it is made of
- Electric motor — has part. An electric drill.
- Gear — has part. A reduction gear.
Principles and materials it uses
History: what it evolved from and what it influenced
- Bow drill — evolved from. The oldest rotary drilling tool.
Things built in a similar way
- Dental drill — works like. The same task — spinning a drill bit; the foot-powered dental drill appeared before the electric drill.
- Drill press — works like. A drill press and a hand drill do the same — spin a bit — but the press is fixed to a bench.