WEEKLY LEARNING ACTIVITY SHEETS
Automotive Grade 7 Quarter 4 Week 2
Operation of hand tools
(Cleaning, bending/holding/twisting/crimping and cutting tools)
Name: _______________________________________Section: _______________________
Learning Objectives:
1. Identify the tools in cleaning, bending and cutting.
2. know the function and uses of each tool
CODE: TLE_IAAS7/8UT-0a1.2
TIME ALLOTMENT: 10hours
Key Concept:
● Cleaning tools
● Bending/holding/twisting/crimping tools
● Cutting tools
Prepare hand tools
When doing any kind of work, tools are needed to have things done. When fixing
furniture, repairing home appliances, or doing simple repair, tools help you make work
easy, with less effort but with efficient result. Without the needed tools, much time is
consumed and more effort is required to accomplish your task.
In order for you to accomplish a task efficiently, you must possess basic knowledge
on how to identify and select tools that are usable, of good quality and free from faults. The
task required calls for the right kind of tools to prepare. Simple jobs usually need simple tools
to use. Heavy jobs need the use of heavy tools. Through constant practice, and simple
observation, you become skillful in selecting the right tool for the job.
In automotive application, it is important that the needed tools are not defective and
must be perfect for the job to finish on time. The use of faulty tools might result in injury and
damage to you and the parts you are working on.
Preparing hand tools to use is easy but requires a lot of practice. Depending on the
level of work to be done, whether it is basic level which involves inspection and checking,
cleaning and simple fixing of parts; the common level for replacing of basic parts such as air
cleaner, fuel filter, hoses; and the core level when performing major tasks such as tune-up,
overhauling and underchassis work.
The extent of work will give you information to identify and select the size, shape and
type of tools needed to accomplish the task.
The following tools for the specific task have corresponding name of specific tools in
performing the task.
TOOLS FOR A SPECIFIC
NAME OF SPECIFIC TOOLS
PROCEDURE/TASK
Brushes ( fiber and wire), Scraper,
● Cleaning tools
Wiping cloth
Chisel, File, Hacksaw, Electric drills, Hole
● Cutting Tools saw, Machinist pliers, Side cutting pliers,
Tin snip
Hammers - Ball peen, Brass/Plastic,
● Driving tools
Starting and Drift punch
Pliers – Combination, Crimping and
● Bending /Holding/ Twisting/ Crimping
Splicer, Cutting, Long nose, Vise-grip,
Tools/Gadget
Bench vise
Wrenches - Allen, Box, Combination,
Open, Socket, Spark plug, Torque
● Loosening and tightening tools wrench
Screwdrivers – Allen, Flat, Offset,
Phillips, Stubby,
● Marking tools Center punch, Scriber
Caliper, Metal tape measure, Steel rule,
● Measuring tools
Torque wrench
Operation of hand tools
To gain more knowledge about the tools, you must know its basic functions so that you will be
able to identify its use.
I. CLEANING TOOLS
1. Scraper is a flat thin sheet of metal with wooden or plastic handle. It is used to scrape hard to
remove dirt or stubborn grime or plastic sticker.
2. Steel/Wire brush are thin strips of metal inserted in a wooden or plastic stock. It is used to remove
rust, hard to remove dirt and grime with sweeping action.
3. Utility rag is a fibrous cloth used in cleaning and wiping dirt and dust.
II. BENDING/HOLDING/TWISTING/CRIMPING TOOLS
1. Pliers are generally used as all-around tools. They have the capability for bending, crimping,
cutting, holding, stripping and twisting. They are available in various shapes and sizes. Generally,
pliers used for electrical job are insulated, whereas those for mechanical work are not insulated but
sometimes equipped with rubber for gripping. Pliers are not used as substitute for wrenches.
Side cutting pliers are tools having a broad, flat, and rough jaw. They have a pair of
nipper-like blades used for cutting and bending wires. Combination pliers are equipped with
adjustable opening by means of a slip joint. It is used for gripping object because of its inner notch
and also used for cutting and bending small wires. Long- nose pliers have a needle-nose ends
used for holding or picking small object. They have a razor-like blade on its jaw for stripping, cutting
and bending wires. Stripping and crimping pliers have two-half round edges used to strip
electrical wire and a crimping nose to fold and lock wire connector. Vise grip or locking jaw pliers
are specially- designed pliers used for holding work pieces together. They have a variety of uses
such as inserting a fastener, holding bolts while tightening or loosening the nut and removing
rounded head bolts and nuts. Machinist pliers have adjustable and cutting jaws with tooth-edged
nose used for holding, bending and cutting wires.
2. Bench vise is a device for holding
and bending pieces of metal. It
consists of one fixed and one
movable jaw operated by a
clamping action of the screw.
III. CUTTING TOOLS
1. Chisel is a hand tool essentially used for cutting bolts, nuts and rivets. It comes in
different types and sizes. A flat cold chisel is used for general cutting. Special
chisels like a diamond point are used for cutting sharp-bottomed groove and a
round-end chisel for cutting oil grooves.
2. Electric Drill is a tool for boring holes. It is made of either carbon steel which
requires frequent sharpening or high speed steel which requires less sharpening.
Electric drill is designed for slow and high speed drilling. It can be hand operated
for slow drilling or electrically operated portable or heavy duty machine for high
speed drilling with replaceable drill attachment at the end. Drills come in various
diameter sizes. Electric drill can also be used as a portable grinding machine by
attaching a handy grinder on its end.
3. File is a hard steel tool used for
smoothening metal. It comes in various
shapes such as flat, round, half-round,
and triangular. It also comes in different
fine-to-coarse cutting edges. A single-
cut file has a single series of cutting
edges parallel to each other whereas a
double-cut file has two sets of cutting
edges that cross at an angle.
4. Hacksaw is an excellent
tool for cutting bolts, tubing
and light to fairly thick
metal. It has a light frame
handle with blade
connected to both ends of
the frame. Depending on
the type of work to be cut, a
hacksaw blade tooth per
inch (TPI) determines the
extent of metal
to be cut. It comes in 14, 18, 24, 32 teeth per inch. The lower the number, the
lesser the number of TPI and the greater its cutting ability. A special hacksaw such
as hole saw is used when boring thin and large diameter sheet of metal. It is
electrically operated by an electric drill
5. Tin Snip is a scissor-
shaped tool used for
cutting thin sheets of
metal.
Activity 1
Direction: Match Column A with Column B. Write the letter of the best answer.
Column A Column B
a. Electric Drill is a tool for boring holes.
1. Hacksaw
b. Steel/Wire brush are thin strips of metal
inserted in a wooden or plastic stock. It is used
2. plier to remove rust, hard to remove dirt and grime
with sweeping action.
3. File c. used for cutting pipes, tubing and fairly thick metal
d. Bench vise is a device for holding and bending
4. Steel brush pieces of metal.
5. Beach vise e. File is a hard steel tool used for smoothening metal.
6. Electric drill f. Pliers are generally used as all-around tools. They
have the capability for bending, crimping, cutting,
holding, stripping and twisting.
Activity 2
Direction. Fill-up the corresponding service procedure with the right tools for the job.
Reflection:
Write a reflection learned from the lesson.
Direction: In writing your reflection you to complete the sentences below.
1. I learned that..
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2. I understand
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3. If given a chance
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