It was around 35,000 BCE, when the Homo Sapiens discovered
the benefits of the application of rotary tools. Not fully developed, they
consisted of a pointed rock being spun between the hands to bore a hole through
another material. This rudimentarily led to the birth of Hand Drill, a smooth stick
that was sometimes attached to flint point, and was rubbed between the palms. Many
ancient civilizations used this. The earliest perforated artifacts, such as bone, ivory, shells and antelers found are
from the upper paleolithicera.
One most great advancement in drilling
technology, i.e. the Electric Motor
led to the invention of the Electric Drill. The credit goes to the Arthur James
Amot and William Blanch Brain, who belonged to Melbourne, Australia. They patented the electric drill in 1889. In 1895, the first portable handheld
drill was created by brothers, Wilhem & Carl Fein, from Stuttgart Germany. In 1917 the
first trigger switch, pistol-grip portable drill was patented by Black & Decker. This was the
start of the modern drill era. Over the last century the electric drill has
been created to the variety of types, and multiple sizes for an assortment of
specific uses.
Hand tools
A variety of hand-powered
drills have been employed over the centuries. Here are a few, starting with
approximately the oldest:
·
Bow Drill
·
Brace & Bits
·
Gimlet
·
Hand Drill
· Breast Drill, similar to a Hand Drill, it has a flat chest piece
instead of a handle
·
Push Drill
·
Pin Chuck, it’s a jeweler’s drill
Accessories
Drills are often used
simply as motors to drive a variety of applications, in much the same way that
tractors with generic PTO’s are used to power ploughs, mowers,
trailers, etc.
·
Water pumps
·
Nibblers for cutting metal sheet
·
Rotary sanding discs
·
Rotary polishing discs
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Drills have a huge impact on our lives. They made our world so easy. Thanks to Sir James & Sir William Brain :)
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