Hand Tools

Student

Prayer Before Class

[Lord, help us in our work today]

[give us concentration] [so that may

we listen,] [understand,] [learn]

[and have a peaceful mind]

[and may we always remember]
[that Jesus Christ is always with us.]

[Amen...]

Bench Work

“Bench Work is the
term used in the
operations in the
machine shop which
involves the use of hand
tools, lay outing, drilling,
grinding and final fitting
of parts.”

Learning Outcome

•Identify the different types of assembly tools;
•Perform proper use of assembly tools
•Maintain and repair tools

Hand Tools

Hand tools are tools that are powered
manually. Hand tools include anything from
axes to wrenches.

How Familiar are you with Hand tools?

Hand Tools

• Assembly Tools

• Power Tools

• Layout Tools

• Cutting Tools

Assembly Tools

Assembly tools are use to put mechanical parts together.

Major types of Assembly Tools

• Screw drivers

• Wrenches

• Pliers

• Hammers

• Pullers

Screw drivers

Screw driver are use
to tighten or loosen
screws that are fixed
in the machine
element.

Types of Screw drivers

Philips (cross recess) screw drivers

Usually called as Positive,
it has a cruciform or cross-
shaped tips that are
unlikely to slip from the
cruciform slots of head
screws.

The end is tapered to an angle of 53

Types of Screw drivers

Standard screw drivers

The standard
screwdriver is used for
most ordinary work and
comes in variety of
sizes.

Types of Screw drivers

Ratchet screw drivers

These screwdrivers are made with a
three-position ratchet control for
screwing, unscrewing and also
providing a neutral position and are
used for turning screws in confined
spaces.

It can be operated without changing
the handgrip and are used for
slackening or tightening with a
medium force.

Types of Screw drivers

Stubby/ Stumpy Screw Driver

These are small sturdy
screwdrivers. This are
used when other types
of screwdrivers cannot
be used due to space
limitations.

Types of Screw drivers

Offset Screw Driver

Offset screwdrivers are used on
screws, which cannot be reached
from above. They are made with
short blades and with tips at right
angle.

Greater turning force can be applied
on screws by these screwdrivers
because of their leverage.

Offset

Screw Driver

Ratchet

Types of Screw drivers

An impact driver is a tool that
delivers a strong, sudden
rotational and downward
force.

They are often used by
mechanics to loosen larger
screws (bolts) and nuts that
are corrosively "frozen" or
over-torqued.

Impact screw drivers

Types of Screw drivers

Precision Screw Driver

This are sets of smaller
screw driver for small
screws.

Screwdriver Technique

• The most important technique is to use the right size

screwdriver.

• Make sure the screwdriver head fits snugly.

• Push the screwdriver toward the head of the screw, turn

clockwise to tighten (the way a clock’s hands turn), counter-
clockwise to loosen.

Wrench

Wrenches are tools for
exerting a twisting stain, as
in turning nut and bolts.

The wrenches are designed
to grip opposite sides of nuts
and bolts when removing or
replacing parts.

Types of Wrench

Open Wrench/ Open End wrench

These may be single-ended
or double ended. The
opening designate the size
of wrench in inches or metric
and are often combined, as
5/16 by 3/8 (in English) and
16 mm by 18 in (Metric).

Types of Wrench

Adjustable Wrench

Most common types of
adjustable wrench are similar to
open end spanners, but they
have one movable jaw. The
opening between the jaws of a
typical 250-mm adjustable
wrench can be adjusted from
zero to 28.5 mm.

Types of Wrench

Box Wrench

Also called 12-point
wrench. It completely
surrounds the nut. It is
use when only a small
rotation of nut is allowed
because of space.

Types of Wrench

Combination Wrench

Combination of Open end
and Box end wrench

Types of Wrench

Socket Wrench

These are similar to the
box wrench but are driven
differently by means of a
handle provided with a
square head, which fits on
the top end of the socket
wrench.

Types of Wrench

Socket Wrench Handles

Types of Wrench

Torque Wrench

A torque wrench measures
resistance to turning--called
torque.

Use when there is a uniform
torque required.

Has a signaling device which
can be preset for the desired
torque.

Types of Wrench

Pipe Wrench/ Monkey Wrench

These are used for
gripping and turning
pipes of a wide range
of diameters.

Types of Wrench

Allen Wrench/ Allen Keys

These are hexagonal section bar tool
steel bent to ‘L’ shape. They are
sometimes called Allen keys.

These are used to rotate setscrews
having internal hexagon sockets. They
are available in sets ranging in size
from 1.5 mm to 20 mm across the flats.

Types of Wrench

Spanner

Spanners are used for
operating thread fasteners,
bolts and nuts. They are
made with jaws opening
that fit square on
hexagonal nuts and bolts
and screw heads.

Hook Spanner and Pin Spanner

Types of Spanner

On a ¼ SHEET of Paper

NAME THE ASSEMBLY TOOLS SHOWN
IN EACH PICTURE. WRITE THE
COMPLETE NAME.
ERASURE MEANS WRONG ANSWER, WRONG SPELLING IS WRONG

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

ANSWERS

BOX WRENCH

HOOK SPANNER

MONKEY WRENCH/

PIPE WRENCH

OFFSET SCREW DRIVERS

ADJUSTABLE WRENCH

COMBINATION WRENCH

STUBBY/ STUMPY SCREW

DRIVER

PRECISION SCREW DIVERS

IMPACT SCREW DRIVER

RATCHET SCREW DRIVER

Pliers

Pliers have a pair of
legs joined by a pivot,
hinged or fulcrum pin.
Each leg consist of a
long handle and a short
jaw.

Types of Pliers

Flat Nose Pliers

It has tapered wedge jaws
with flat gripping surfaces,
which may be either smooth
or serrated.

it is used for bending and
folding narrow strips of thin
sheet metal.

Types of Pliers

Long Nose Pliers

Thistype of pliers is
made with tapered
round shaped jaws.
They are used to
shaped loops in wires
and to form curves in
light metal strips.

Types of Pliers

Side Cutting Pliers

It is made with jaws set at
an angle. They are used
for shearing off wires in
confined spaces and
cutting off wires close to
the surface level.

Types of Pliers

End Cutting Pliers

This plier has the
same uses as the
side cutting pliers.

Types of Pliers

Slip Joint Pliers

These pliers are available in
various ranges of position
with different shapes of pivot
pins so that they have various
ranges of jaw openings.

They are mainly used for
gripping.

Types of Pliers

Cir Clip Pliers

This plier has the same
uses as the side cutting
pliers.

Types of Pliers: Cir Clip Pliers

Internal Cir clip Pliers

Types of Pliers: Cir Clip Pliers

External Cir clip Pliers

Types of Pliers

Locking Grip/ Vise Grip Pliers

Also called as Vise grip,
it is designed to hold
work.

One jaw is adjustable to
fit different sizes of
nuts, bolt, pipes and
rods

NAME THE ASSEMBLY TOOLS SHOWN
IN EACH PICTURE. WRITE THE
COMPLETE NAME.
ERASURE MEANS WRONG ANSWER, WRONG SPELLING IS WRONG

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

Identify the tool

VISE GRIP/ LOCK GRIP PLIERS

RATCHET SCREW DRIVER

SOCKET WRENCH

OFFSET SCREW DRIVERS

ADJUSTABLE WRENCH

COMBINATION WRENCH

STUBBY/ STUMPY SCREW

DRIVER

Slip Joint Pliers/ Mechanical

Pliers

Internal Cir-clip Pliers/

Retaining Ring Pliers

Side Cutting Pliers

Hammers

A hammer is a tool meant
to deliver an impact to an
object.

The most common uses
are for driving nails, fitting
parts, forging metal and
breaking up objects.

Types of Hammers

Ball Peen Hammer

Soft Hammers

Cross Peen

Straight Peen

Ball Peen

Types of Hammers

Uses of Peen end Hammer

Pullers

Puller

Fitted parts like bearings and
gears can be damage during
removal and installation if we use
Hammer, bars and chains.

For this purpose, we use pullers.

Types of Pullers

External Puller

Grips the back of the object with
their jaws while the forcing screw
pushes against the stationary part

Types of Pullers

Internal Puller

Have legs mount on the stationary part
while the forcing screw pulls the object.

Types of Pullers

Press Puller

Has legs mounted on
the stationary part,
while the object is
pushed and pressed.

Arbor Press

Arbor Press

An arbor press is a small hand
operated press. It is usually
used to do smaller jobs, such
as staking, riveting, installing
and removing bearings and
other press fit work.

Safety in Using Hand Tools

• Use the right tool for the right job

• Keep tools clean and store it properly

• Inspect tools before using

• Do not use a hammer to strike another

• Never hold the work in your hand when

using a screw driver

Safety in Using Hand Tools

• Never use an ordinary wrench to free

a frozen nut.

• Do not use an adjustable wrench in

any situation requiring a lot of force.

Safety in Using Hand Tools

Safety in Using Hand Tools

Safety in Using Hand Tools

Safety in Using Hand Tools

Safety in Using Hand Tools

Safety in Using Hand Tools

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Safety in Using Hand Tools

Safety in Using Hand Tools

Safety in Using Hand Tools

A

B

C

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ANSWER THE FOLLOWING
QUESTIONS

WRITE THE LETTER TOGETHER
WITH THE CORRECT ANSWER
ON MULTIPLE CHOICE QUESTIONS

Give the 4 Types of Hand Tools.

These are tools that are
use to put mechanical
parts together.

hand tools

These tools are used for exerting a twisting
stain, as in turning nut and bolts.

B. Pliers

C. Wrench

D. Screw Driver

A. Pullers

These tools are use to tighten or loosen screws
that are fixed in the machine element.

B. Pliers

C. Wrench

D. Screw Driver

A. Pullers

Q

UESTION NO: 8

These tools have a pair of legs joined by a
pivot, hinged or fulcrum pin. Each leg consist of
a long handle and a short jaw.

B. Pliers

C. Wrench

D. Screw Driver

A. Pullers

Q

UESTION NO: 9

These tools are used to remove fitted parts like
bearings and gears.

B. Wrench

C. Pliers

D. Hammer

A. Pullers

A hand tool that is used to deliver an impact to
an object.

B. Wrench

C. Pliers

D. Hammer

A. Pullers

– MULTIPLE CHOICE

Which of the following wrenches is best suited to use in
tightening or loosening a frozen nut

A

B

C

– MULTIPLE CHOICE

Which of the following screw driver is best suited to use
in applying more force in loosening or tightening
screws.

A

B

C

– MULTIPLE CHOICE

Which of the following pliers is best suited for bending
and folding narrow strips of thin sheet metal.

A

B

C

– MULTIPLE CHOICE

Which screw drivers is best suited in removing screw in
the picture

– MULTIPLE CHOICE

Which screw drivers is best suited in removing screw in
the picture

A

B

C

– MULTIPLE CHOICE

Which type of wrench is used for gripping and turning
pipes of a wide range of diameters.

A

B

C

Give the 4 Types of Hand Tools.

•

Assembly Tools

•

Power Tools

•

Layout Tools

•

Cutting Tools

These are tools that are
use to put mechanical
parts together.

hand tools

•

Assembly Tools

These tools are used for exerting a twisting
stain, as in turning nut and bolts.

B. Pliers

C. Wrench

D. Screw Driver

A. Pullers

This tools are use to tighten or loosen screws
that are fixed in the machine element.

B. Pliers

C. Wrench

D. Screw Driver

A. Pullers

These tools have a pair of legs joined by a
pivot, hinged or fulcrum pin. Each leg consist of
a long handle and a short jaw.

B. Pliers

C. Wrench

D. Screw Driver

A. Pullers

This tools are used to remove fitted parts like
bearings and gears.

B. Wrench

C. Pliers

D. Hammer

A. Pullers

A hand tool that is used to deliver an impact to
an object.

B. Wrench

C. Pliers

D. Hammer

A. Pullers

Which of the following wrenches is best suited to use in
tightening or loosening a frozen nut

A

B

C

Which of the following screw driver is best suited to use
in applying more force in loosening or tightening
screws.

A

B

C

Q

UESTION NO: 13

– MULTIPLE CHOICE

Which of the following pliers is best suited for bending
and folding narrow strips of thin sheet metal.

A

B

C

Q

UESTION NO: 14

– MULTIPLE CHOICE

Which screw drivers is best suited in removing screw in
the picture

Q

UESTION NO: 14

– MULTIPLE CHOICE

Which screw drivers is best suited in removing screw in
the picture

A

B

C

Q

UESTION NO: 15

– MULTIPLE CHOICE

Which type of wrench is used for gripping and turning
pipes of a wide range of diameters.

A

B

C

Lets Check Your Scores

freerange-420-90.jpg

Lets Have a Test

hand tools

“Identify the name of the
following assembly tools”

ASSEMBLY TOOLS

IDENTIFICATION

BENCH WORK QUIZ NO.3

ON A ¼ SHEET

OF PAPER

NAME THE ASSEMBLY TOOLS SHOWN
IN EACH PICTURE. WRITE THE
COMPLETE NAME.
ERASURE MEANS WRONG ANSWER, WRONG SPELLING IS WRONG

TOOL

NO: 1
Identify the tool

TOOL

NO: 2
Identify the tool

TOOL

NO:3
Identify the tool

TOOL

NO:4
Identify the tool

TOOL

NO:5
Identify the tool

TOOL

NO:6
Identify the tool

TOOL

NO:7
Identify the tool

TOOL

NO:8
Identify the tool

TOOL

NO:9
Identify the tool

TOOL

NO:10
Identify the tool

TOOL

NO:11
Identify the tool

TOOL

NO:12
Identify the tool

TOOL

NO:13
Identify the tool

TOOL

NO:14
Identify the tool

TOOL

NO:15
Identify the tool

TOOL

NO:16
Identify the tool

TOOL

NO:17
Identify the tool

TOOL

NO:18
Identify the tool

TOOL

NO:19
Identify the tool

TOOL

NO:20
Identify the tool

ANSWERS

TOOL

NO: 1
Identify the tool

Side Cutting Pliers

TOOL

NO: 2
Identify the tool

Hook Spanner

TOOL

NO:3
Identify the tool

Monkey Wrench/ Pipe Wrench

TOOL

NO:4
Identify the tool

Offset Screw Drivers

TOOL

NO:5
Identify the tool

Adjustable Wrench

TOOL

NO:6
Identify the tool

Flat Nose Pliers

TOOL

NO:7
Identify the tool

Box Wrench

TOOL

NO:8
Identify the tool

Stubby/ Stumpy Screw Driver

TOOL

NO:9
Identify the tool

End Cutting Pliers

TOOL

NO:10
Identify the tool

Cir Clip Pliers

TOOL

NO:11
Identify the tool

Slip Joint Pliers

TOOL

NO:12
Identify the tool

Lock Grip/ Vise Grip Pliers

TOOL

NO:13
Identify the tool

Ball Peen Hammer

TOOL

NO:14
Identify the tool

External Pullers

TOOL

NO:15
Identify the tool

Precision Screw Divers

TOOL

NO:16
Identify the tool

Socket Wrench

TOOL

NO:17
Identify the tool

Combination Wrench

TOOL

NO:18
Identify the tool

Impact Screw Driver

TOOL

NO:19
Identify the tool

Ratchet Screw Driver

TOOL

NO:20
Identify the tool

Claw Hammer

LETS CHECK YOUR

SCORES

freerange-420-90.jpg

Prayer After Class

[We thank you God] [for all Your gifts.]

[We thank You] [for helping us to learn our
lessons] [and for keeping us safe this day.]

[Forgive us our faults and sins.]

[Help us to practice what we learnt here]

[and to remain always good]

[Amen…]