Power
Tools
Content Standards
1
Understanding Power Tools
Demonstrate an understanding of the uses and maintenance of hand tools, power tools, instruments, and equipment.
2
Performance Standards
The learners perform mensuration and calculations following safety precautions.
3
Learning Competency
Identify the uses and maintenance of hand tools, power tools, instruments, and equipment.
Review: Hand Tools
Definition
Hand tools are manually operated tools that do not require electricity or power sources. They are essential in various fields, including construction, woodworking, metalworking, and household repairs.
Importance
Proper use and maintenance of hand tools improve efficiency and safety in any task.
Hand Tool Classifications
Cutting Tools
-Used to cut or shape materials (e.g., saws, chisels, utility knives)
Fastening Tools
-Used to join or secure materials (e.g., hammers, screwdrivers, wrenches)
Measuring Tools
-Used for accuracy in dimensions (e.g., tape measures, calipers, levels)
Holding and Gripping Tools
-Used to hold or secure objects (e.g., pliers, clamps, vises)
Common Hand Tools
Hammers
-Used for driving nails, shaping metal, or breaking objects.
Screwdrivers
-Used for tightening or loosening screws.
Wrenches
-Used for gripping, tightening, or loosening nuts and bolts.
Common Hand Tools
Pliers
-Used for gripping, bending, or cutting wires.
Saws
-Used for cutting wood, metal, or plastic.
Essential Hand Tools for Every Toolkit
1
Hammer
For nailing and shaping.
2
Screwdriver Set
-For various screw types.
3
Adjustable Wrench
-For tightening or loosening bolts.
4
Pliers
-For gripping and wire-cutting.
5
Measuring Tape
-For accurate measurements.
6
Handsaw
-For cutting different materials.
Using the correct hand tool for the right task ensures efficiency, safety, and longevity of both tools and materials. Always follow safety guidelines to prevent accidents and maintain tools properly for long-term use.
1. Lesson Purpose:
The purpose of this lesson is to provide with a fundamental understanding of power tools, their functions, proper handling, and safety precautions. By the end of the lesson, should be able to:
1
Identify different types of power tools and their specific uses in various tasks.
2
Understand the advantages of power tools over hand tools in terms of efficiency and precision.
3
Demonstrate proper handling and operation of common power tools.
4
Recognize safety guidelines and precautions to prevent accidents and injuries.
5
Develop responsible usage habits to extend the lifespan of tools and ensure workplace safety.
2. Unlocking Content Vocabulary
Understanding key vocabulary related to power tools is essential for proper usage and safety. Below are important terms students should know:
Power Tools – Tools that are operated using an external power source, such as electricity, batteries, or compressed air.
Corded Tools – Power tools that require a direct connection to an electrical outlet.
Corded Tools – Power tools that require a direct connection to an electrical outlet.
Drill – A tool used for making holes in different materials using a rotating bit.
Impact Driver – A powerful tool used to drive screws and fasteners with high torque.
Circular Saw – A motorized saw with a rotating blade used for cutting wood, metal, or plastic.
Jigsaw – A power saw with a small, reciprocating blade used for curved or intricate cuts.
Angle Grinder – A handheld tool with a rotating disc used for grinding, cutting, and polishing materials.
Sander – A tool used to smooth surfaces by abrasion with sandpaper.
Router – A power tool used for hollowing out or shaping wood, plastic, or metal.
Reciprocating Saw – A saw with a back-and-forth blade motion, used for demolition and rough cuts.
Compressor – A device that supplies air pressure to pneumatic (air-powered) tools.
RPM (Revolutions Per Minute) – The speed at which a power tool's motor or blade rotates.
Torque – The rotational force applied by a power tool, important for drills and impact drivers.
Safety Switch – A feature designed to prevent accidental activation of power tools.
Kickback – A sudden, uncontrolled reaction of a power tool when it gets stuck or binds in a material.
Personal Protective Equipment (PPE) – Safety gear such as gloves, goggles, and ear protection used when operating power tools.
Dust Collection System – A feature or attachment that reduces airborne dust when using tools like saws and sanders.
Blade Guard – A protective cover on saws to prevent accidental contact with the blade.
Workpiece – The material being cut, drilled, or shaped with a power tool.
Mastering these terms will help students use power tools effectively and safely.
Introduction to Pneumatic Tools
1
Definition
-Pneumatic tools, also known as air tools, use compressed air as the energy source.
2
Advantages
-They make jobs easy and fast, whether drilling holes, tightening/loosening nuts/bolts, demolishing roads/buildings, inflating tires, or painting.
3
Power Source
-Pneumatic tools rely on compressible gases such as air or pure gas for power transmission.
Common Pneumatic Tools: Air Impact Wrench
-Powerful tools commonly used for loosening or tightening bolts and nuts with high torque. They are especially useful for automotive work and construction.
Common Pneumatic Tools: Pneumatic Drill
A handheld air-powered tool that drills holes or destroys hard surfaces such as rock, concrete, and roads. It's commonly used in construction and demolition work.
Common Pneumatic Tools: Air Hammer
It uses compressed air to drive a hammering piston that delivers repeated impacts to the attached chisel or tool bit. Air hammers are useful for breaking up materials or for metalworking tasks.
Common Pneumatic Tools: Tire Inflator
A simple tire inflator is a popular air tool, even with general consumers. There are several tire inflators; some use air pumps to inflate tires, balls, mattresses, etc. A tire inflator with a dedicated air compressor is necessary for heavy workloads and inflating large tires (for trucks and semi-trucks).
Common Pneumatic Tools: Paint Sprayer
Spray painting is another essential application of compressed air. Paint sprayers range from simple airbrushes to more advanced paint guns. They are used in various applications including automotive painting, mural painting, and industrial coating.
Introduction to Hydraulic Tools
1
Definition
-Hydraulic tools use incompressible liquids like mineral oil, ethylene glycol, water, synthetic fluids, or high-temperature resistant fluids to enable power transmission.
2
Advantages
-Hydraulic tools can generate immense force, making them ideal for heavy-duty applications.
3
Applications
-Commonly used in construction, manufacturing, and automotive industries for tasks requiring high force.
Common Hydraulic Tools: Hydraulic Wrench
A conventional hydraulic torque wrench kit generally comprises a hydraulic torque wrench, a particular hydraulic pump station for hydraulic torque wrenches, a double high-pressure hose, and a high-strength heavy-duty socket. It's used for precise torque applications in industrial settings.
Common Hydraulic Tools: Hydraulic Jack
A jack that uses a plunger or a hydraulic cylinder as a rigid jacking member. Simple lifting equipment is generally only equipped with a lifting mechanism to lift heavy objects. It is simple in structure, light in weight, easy to carry, and easy to move.
Common Hydraulic Tools: Hydraulic Puller
This is an ideal new tool to replace traditional pullers. It has a compact structure, flexible use, convenient carrying and operation, fewer restrictions on site, etc. It is suitable for various maintenance places. The hydraulic puller is especially useful for removing bearings, gears, and other press-fit components.
Common Hydraulic Tools: Hydraulic Nut Cutters
Also called nut cutters. In some industries, for rusted nuts that cannot be disassembled, a nut cutter can be used to cut the bolt easily without damage to the bolt, and the bolt can be used next time. This tool is particularly useful in maintenance and repair work where conventional methods fail.
Common Hydraulic Tools: Hydraulic Press
A mechanical press that utilizes hydraulic cylinders to generate compression force. It uses the hydraulic equivalent of a mechanical lever, also known as a Brahma press. Hydraulic presses are used in various industries for tasks such as metal forming, molding, and assembly.
Common Hydraulic Tools: Hydraulic Crimpers
Tools used to connect the ends of two cables, wires, or similar flexible materials, such as hydraulic hoses, to match hose ends. The tool allows the user to create a crimp connection through a hydraulic fluid mechanism that transfers force from the user to the tool. They are essential in electrical and hydraulic system installations.
Worked Example:
● Have a group activity. Let the students think of 6 power tools, 3 pneumatic and 3 hydraulic tools.
● Have a group activity. Let the students think of 6 power tools, 3 pneumatic and 3 hydraulic tools.
● Facilitate the discussion, especially when students need further explanations.
Hydraulic Tools
Pnuematic
1.
2.
3.
3. Lesson Activity: Identify and Classify the Different Types of Tools
Directions: Identify and classify each one into the corresponding category: hand tool or power tool. (See worksheet for the activity which students will accomplish.)
Activity: “Power Tools in Action” – Developing and Deepening Understanding
Objectives:
-Identify different types of power tools and their uses.
-Explain the advantages and safety precautions of power tools.
-Apply knowledge of power tools in real-life scenarios.
Activity: “Power Tools in Action” – Developing and Deepening Understanding
Materials Needed:�✔ Pictures or actual power tools (e.g., drill, circular saw, jigsaw, sander, impact driver)�✔ Chart paper or printed worksheets�✔ Markers or pens
Activity: “Power Tools in Action” – Developing and Deepening Understanding
Materials Needed:�✔ Pictures or actual power tools (e.g., drill, circular saw, jigsaw, sander, impact driver)�✔ Chart paper or printed worksheets�✔ Markers or pens
Activity Steps:
1. Know – Power Tools Identification (10 minutes)
🛠 Warm-Up Discussion: Ask students:
-"What power tools have you seen or used before?"
-"How do power tools help make tasks easier?"
🛠 Matching Game:
-Display images or real power tools.
-Have students match each tool with its correct name and function.
Activity Steps:
2. Use – Hands-On Exploration (15 minutes)
🛠 Group Activity:
-Divide students into small groups and assign each group a power tool.
-Each group researches the tool’s purpose, how it works, and safety precautions.
-Groups present their findings to the class.
Activity Steps:
3. Master – Application and Analysis (15 minutes)
🛠 Scenario-Based Questions:
-Present real-life situations and ask: “Which power tool would you use and why?”
-Example: "You need to drill a hole in a wooden board. Which tool would be best?"
-Example: "You want to smooth out a rough surface. What tool would you use?"
Activity Steps:
🛠 Reflection:
-Ask students: “Why is it important to follow safety guidelines when using power tools?”
-Let them write a short response or share their thoughts.
Worksheet:
Synthesis/Extended�What you have learned�In a one sheet of paper write something you understand about the lesson we discussed today.
Quiz: Power Tools Knowledge
Directions: Read each question carefully and choose the best answer. Encircle the letter of your choice.
1.Which of the following is a power tool used for drilling holes in various materials?�a. Chisel�b. Screwdriver�c. Electric Drill�d. Pliers
2.What is the main advantage of using power tools over hand tools?�a. They are cheaper�b. They require less skill to use�c. They increase efficiency and speed up work�d. They do not require maintenance
3.What is the main advantage of using power tools over hand tools?�a. They are cheaper�b. They require less skill to use�c. They increase efficiency and speed up work�d. They do not require maintenance
4.What should always be worn when using power tools to ensure safety?�a. Sandals�b. Personal Protective Equipment (PPE)�c. Jewelry�d. Loose clothing
5.What powers pneumatic tools?�a. Electricity�b. Water pressure�c. Compressed air�d. Battery
6.Which of the following is an example of a pneumatic tool?�a. Electric Drill�b. Air Impact Wrench�c. Hydraulic Jack�d. Chainsaw
7.What is a common use for a pneumatic nail gun?�a. Tightening screws�b. Driving nails quickly into wood�c. Sanding wood�d. Cutting metal
8.Which safety measure is most important when using pneumatic tools?�a. Overloading the air compressor�b. Checking hoses and connections for leaks�c. Holding the tool loosely while in use�d. Ignoring manufacturer instructions
9.Hydraulic tools use what type of force to operate?�a. Air pressure�b. Water pressure�c. Liquid fluid pressure�d. Electrical power
10.Which of the following is a common hydraulic tool?�a. Air Compressor�b. Jackhammer�c. Hydraulic Jack�d. Chainsaw
Answers:
Thank You!