Electricity Hand Tools

Wire stripper is used to strip off
wire insulator from its conductor

before it is used to connect to
another wire or soldered into the
printed circuit board. Some wire
stripper or wire cutter has a
measurement engraved on it to
indicate the length that can be
stripped.
 Long nose Pliers
 A pair of 4-inch long nose pliers will
come in handy when you need to hold
components that have short leads that
need to be soldered onto the PCB but
will be too hot to handle with bare
hands. It will also be useful to hold the
component that needs to be de-
soldered from the board
Side-Cutting Pliers- A pair of
4-inch side cutting pliers will
come in handy when one needs
to trim off excess component
leads on the printed circuit
board. It can also be used to cut
wires into shorter length before
being used.
Small tweezers- are used to
hold much smaller
components especially when
doing soldering and de-
soldering of surface mount
components.
Allen wrench set is sometimes
used to unscrew or screw Allen
type of screws.
Philips head screwdriver-Various
sizes of Philips head screwdrivers
will be handy as a lot of electronics
projects that use screws are Philips
Head type.
Flat head screwdrivers of
various sizes are also necessary
as many screws commonly used
are of this type.
Hammer-A small, light hammer
will be useful when assembling
projects that involve casing.
 Socket wrench set includes nut
drivers, hex drivers, and starters in
assorted sizes that will come in handy
during the assembly work of
electronics project.
 Blade Cutter will be useful
when one need to cut PCB,
wires or remove some copper
from the printed circuit board.
Equipment
Aside from hand tools, certain
equipment are also needed for
more accurate and quality output.
Three of the commonly used
equipment are presented here for
you to be familiar with their uses
and the proper way of maintaining
them.
 Electric Drill and Drill Bits
 Electric drill and drill bits in the range
of 1/8 inch to 1/2 inch will come in
handy when you need to drill holes on
the printed circuit board (PCB) that
has been etched. Drilling of plastic or
metal enclosure that houses the
printed circuit board are sometimes
necessary.
 Soldering Iron
 In large and heavy metal work, welding
is used in joining metals permanently.
In electronics work, soldering is used to
join pigtails of components, transistor
leads, and IC pins among others.
Soldering is the process of heating
materials, and joints to be soldered and
applying solder on the heated joints to
ensure permanent connection
 c. Volt-OHM-Milliammeter (VOM). A handheld
device that combines three functions: as a voltmeter
that measures both ac and dc voltages: an ohmmeter
that measures resistance: and milliammeter that
measures small amount of dc current. It is called
Multitester (Multi-tester) or Multimeter (Multi-tester).
It can measure to a very high degree of accuracy. They
can be used to troubleshoot electrical problems in a
wide array of industrial and household devices such as
electronic equipment, motor controls, domestic
appliances, power supplies, and wiring systems. As
safety precautions in the maintenance of this
instrument, the following should be observed
General Rule for Analog
 Always rest the function switch at
250Vac .
if an off position is not available in the
instrument .
For current and voltage
measurement,
always set the function switch in the
correct setting which is a little
higher than
the expected current or voltage
present in the circuit.
Optimise the range for the
best reading. If possible
adjust it so that the
maximum deflection of the
meter can be gained. In this
way the most accurate
reading will be gained.
When making
measurements, Keep your
fingers behind the finger
guards on the test probes.
Place the instrument in a
cool dry place, away from
any magnetic devices, and
free from vibrations.
Hand Tools Classification
Cutting Tools: These are used

to cut a physical object into
pieces. For example: side cutting
pliers and blade cutters.
Gripping Tools: These
tools are used for gripping
objects by using leverage.
For example: long nose
pliers and twizzers.
Striking Tools: The striking tools
are the most widely used tools.
Chiseling, punching and riveting
can be done properly using striking
tools. Hand-held striking tools
have been used in a variety of
disciplines as leverage devices
providing a striking force to
complete endless variety of tasks.
For example: hammers & chisels
Driving Tools: These are designed
in such a way that insertion,
tightening, loosening, removing
screws, bolts, nails or other pointed
objects or hard-to-turn items are
done by applying torque. For
example: screwdrivers, nut drivers
and wrenches.
Struck or Hammered
Tools: These tools are used
for forcing a bolt, pin, or rivet
in or out of a hole. For
example: punches, nail sets,
chisels.
Measuring Tools
Instruments for determining
various quantities such as
temperature, mass, height,
length, voltage and
mechanical force.
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Wire stripper is used to strip off

wire insulator from its conductor

Cutting Tools: These are used

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