Machine Fact File

Have you ever wondered how to use a screwdriver? A screw driver is a machine (tool) used for turning or removing screws. A common screwdriver has a shaft, a tip and a handle. The tip is the part that is inserted into the screw head to turn it.

To use a screwdriver,you have to place the screw at the screwdriver tip and hold both screw and tip together with the fingers of one hand. Apply very little pressure on the screwdriver while turning in a clockwise direction until the screw reaches the wood. Put a little pressure to the tip anticlockwise until the screw comes up towards you. Now you know how to use a screwdriver.

What is life without screwdrivers?

It would be harder to live because you can’t screw things on (wall and roof). Without screwdrivers our lives would be harder because we couldn’t tighten bolts without a screwdriver.Without screwdriver you couldn’t tighten TV's,laptops,computers,tables and chairs.

10 Facts about screw driver

1.The first screw driver is older than 1500's
2.Screw predates screwdriver
3.A screwdriver uses torque to tighten screws and bolts
4.The flat head and the slotted screwdriver was the first known heads for a screw driver
5.A traveling salesman invented the Phillips or cruciform
head screwdriver that we are so familiar with today in the
early 1900's. 
6.The screwdriver is made up of a head or tip, which is
fitted to the screw or bolt.
7.In America the first handheld screwdriver appeared on the
market in the 1800's.
8.General Motors used the cruciform head screw in 1936 on
the Cadillac. 
9.There are specialized types of screwdrivers for special jobs. For
instance, there are very small screwdrivers that are used
for working on computers and PC boards. They are very small
and have a special shaft for applying the proper small
amounts of torque. 
10.There are several screwdriver types, including: flat-
head, cabinet, Phillips, Frearson, Torx, clutch-head, hex,
Bristol multi-spline and square-tipped.

10 key words:

Torque
Turn
Handle
Shank
Head
Screw
Bolt
Specialized
Cruciform
Jobs