Workshop Tools
Identify tools and equipment used and their respective functions. description.
engineersindiasolution.com
9/13/202617 min read
Certainly. Below is a comprehensive, approximately 5000-word study article in notes format on Workshop Tools: Identification of Tools and Equipment and Their Functions, suitable for ITI, Polytechnic, Diploma, Engineering and Workshop Practice students.
WORKSHOP TOOLS
Identification of Tools and Equipment Used and Their Respective Functions
1. Introduction
A workshop is a place where various operations such as measuring, marking, cutting, shaping, drilling, joining, forming, finishing, assembling and repairing of materials are carried out. Workshop practice is an important part of technical education because it provides students with practical knowledge about tools, machines, materials and manufacturing processes.
A technician, mechanic, civil engineer, mechanical engineer or skilled worker must know how to select and use the correct tool for a particular operation. The quality, accuracy and safety of workshop work depend greatly on proper tool selection and correct handling.
Workshop tools can be broadly classified according to their functions, such as:
Measuring tools
Marking tools
Cutting tools
Holding and clamping tools
Striking tools
Chiselling tools
Drilling tools
Threading tools
Files
Grinding and finishing tools
Sheet-metal tools
Woodworking tools
Plumbing tools
Electrical workshop tools
Welding equipment
Safety equipment
General workshop equipment
Each tool has a specific purpose. For example, a steel rule is used for measuring and straight-line marking, a hacksaw is used for cutting metal, a file is used for removing small amounts of material and producing a smooth surface, and a bench vice is used for holding a workpiece firmly.
Knowledge of workshop tools helps students develop practical skills, improve accuracy, reduce material wastage and perform operations safely.
2. Importance of Workshop Tools
Workshop tools are essential for converting raw materials into useful products and components. They are used in almost every manufacturing and maintenance activity.
The major importance of workshop tools is as follows:
2.1 Accurate Work
Measuring and marking tools allow dimensions to be transferred accurately to a workpiece.
2.2 Efficient Manufacturing
Proper tools increase working speed and reduce unnecessary effort.
2.3 Better Surface Finish
Files, grinders, reamers and finishing tools help produce smooth and accurate surfaces.
2.4 Safe Working
Correct tools reduce the possibility of accidents and injuries.
2.5 Reduced Material Wastage
Accurate measurement and controlled cutting prevent unnecessary removal of material.
2.6 Improved Productivity
Appropriate tools allow workers to complete jobs faster and with greater consistency.
2.7 Maintenance and Repair
Workshop tools are essential for repairing machines, structures, equipment, vehicles, pipelines and other components.
3. Classification of Workshop Tools
Workshop tools may be classified into the following major groups:
Measuring tools
Marking tools
Holding tools
Cutting tools
Striking tools
Chiselling tools
Drilling tools
Threading tools
Filing tools
Grinding tools
Sheet-metal tools
Woodworking tools
Plumbing tools
Welding equipment
Electrical tools
Lifting and handling equipment
Safety equipment
The following sections explain the important tools and their respective functions.
4. Measuring Tools
Measuring is one of the first operations performed in a workshop. Accurate measurement is necessary to manufacture components according to the required dimensions.
4.1 Steel Rule
A steel rule is a simple measuring instrument made from hardened steel.
Function
It is used for:
Measuring length
Checking dimensions
Drawing straight lines
Setting approximate dimensions
Measuring small workpieces
Steel rules are available in different lengths and graduations.
Advantages
Simple to use
Durable
Inexpensive
Easy to carry
4.2 Measuring Tape
A measuring tape consists of a flexible strip marked with graduations.
Function
It is mainly used for measuring:
Long lengths
Large workpieces
Building dimensions
Room dimensions
Construction work
Site measurements
Measuring tapes are particularly useful where rigid measuring instruments cannot conveniently be used.
4.3 Vernier Caliper
A vernier caliper is a precision measuring instrument used for measuring internal dimensions, external dimensions and depths.
Main Parts
Main scale
Vernier scale
Outside jaws
Inside jaws
Depth rod
Locking screw
Fine adjustment mechanism
Functions
A vernier caliper can measure:
Outside diameter
Inside diameter
Thickness
Length
Depth
It provides greater accuracy than an ordinary steel rule.
4.4 Micrometer
A micrometer is a precision instrument used for measuring very small dimensions accurately.
Types
Outside micrometer
Inside micrometer
Depth micrometer
Function
An outside micrometer is commonly used for measuring:
Diameter of shafts
Thickness of plates
Thickness of small components
The micrometer uses a precision screw mechanism to obtain accurate measurements.
4.5 Try Square
A try square consists of a steel blade fixed to a stock at approximately 90 degrees.
Functions
It is used to:
Check right angles
Mark perpendicular lines
Check squareness of surfaces
Verify the accuracy of machined edges
It is commonly used in fitting, carpentry and metalworking.
4.6 Combination Square
A combination square consists of a ruler and a movable head.
Functions
It can be used for:
Checking 90° angles
Checking 45° angles
Measuring depths
Marking lines
Checking parallel surfaces
It is a versatile workshop instrument.
4.7 Bevel Protractor
A bevel protractor is used to measure and set angles.
Function
It is useful when an angle other than 90° is required.
Applications include:
Machine work
Fitting
Tool setting
Inspection
Fabrication
4.8 Depth Gauge
A depth gauge is used to measure the depth of:
Holes
Slots
Recesses
Grooves
Steps
It is particularly useful when depth must be controlled accurately.
5. Marking Tools
Marking tools are used to indicate lines, points, circles and locations on a workpiece before cutting or machining.
5.1 Scriber
A scriber is a pointed hardened-steel tool.
Function
It is used to scratch fine lines on metal surfaces during marking operations.
A scriber is commonly used with a steel rule, try square or surface plate.
5.2 Centre Punch
A centre punch has a pointed end and is generally struck with a hammer.
Function
It is used to create a small indentation at a marked location.
The indentation:
Provides a starting point for drilling
Prevents the drill from wandering
Identifies hole centres
5.3 Prick Punch
A prick punch has a sharper point than a centre punch.
Function
It is mainly used for making light marks on metal surfaces during layout work.
5.4 Divider
A divider consists of two pointed legs connected at the top.
Functions
It is used for:
Drawing circles and arcs
Transferring dimensions
Dividing distances
Marking equal spaces
5.5 Odd-Leg Caliper
An odd-leg caliper has one pointed leg and one bent leg.
Function
It is useful for:
Scribing parallel lines
Marking lines at a fixed distance from an edge
Layout work
5.6 Surface Gauge
A surface gauge consists of a base and a vertical spindle with a marking point.
Function
It is used for:
Marking parallel lines
Setting workpiece heights
Transferring dimensions
Checking alignment
It is generally used on a surface plate.
6. Holding and Clamping Tools
Holding tools keep the workpiece firmly in position while cutting, drilling, filing or other operations are performed.
6.1 Bench Vice
A bench vice is one of the most common workshop holding devices.
Main Parts
Fixed jaw
Movable jaw
Spindle
Handle
Base
Jaw plates
Functions
It is used to hold workpieces securely during:
Filing
Hacksaw cutting
Chiselling
Drilling
Threading
Assembly
The workpiece should be held firmly but should not be over-tightened.
6.2 Hand Vice
A hand vice is a small portable vice operated manually.
Function
It is used for holding small workpieces during:
Filing
Drilling
Cutting
Marking
6.3 Machine Vice
A machine vice is generally mounted on a drilling machine, milling machine or other machine tool.
Function
It holds a workpiece securely during machining operations.
6.4 G-Clamp
A G-clamp has a frame shaped approximately like the letter G.
Function
It is used for temporarily clamping:
Plates
Wooden pieces
Metal components
Fabricated assemblies
6.5 C-Clamp
A C-clamp works on a principle similar to the G-clamp.
Function
It is used to hold two or more components together during fabrication, drilling, welding or assembly.
6.6 Pliers
Pliers are hand tools consisting of two handles and jaws.
Functions
Different types of pliers are used for:
Holding small objects
Bending wire
Cutting wire
Pulling components
Gripping materials
Common types include:
Combination pliers
Long-nose pliers
Side-cutting pliers
Slip-joint pliers
7. Cutting Tools
Cutting tools remove material from a workpiece or divide a material into smaller parts.
7.1 Hacksaw
A hacksaw consists of a metal frame and a replaceable toothed blade.
Function
It is primarily used for cutting:
Metal rods
Pipes
Bars
Sheets
Bolts
Small sections
Good Practice
The blade should be selected according to the material and thickness being cut.
7.2 Hacksaw Blade
Hacksaw blades are available with different tooth pitches.
Function
The blade performs the actual cutting operation.
A finer tooth blade is generally suitable for thinner sections, while a coarser tooth blade can be used for thicker materials, subject to the manufacturer's recommendations.
7.3 Snips
Snips are hand-operated cutting tools used for sheet metal.
Function
They are used to cut thin metal sheets.
Types include:
Straight snips
Left-cut snips
Right-cut snips
7.4 Chisel
A chisel is a cutting tool with a sharp wedge-shaped edge.
Function
It is used for:
Cutting metal
Removing excess material
Making grooves
Chipping unwanted material
Splitting or shaping workpieces
Chisels are generally used with a hammer.
7.5 Cold Chisel
A cold chisel is designed primarily for cutting and chipping metals at room temperature.
Uses
Cutting bolts
Removing rivets
Cutting grooves
Chipping metal
Removing excess metal
8. Striking Tools
Striking tools apply impact force to another tool or workpiece.
8.1 Ball-Peen Hammer
A ball-peen hammer has one flat face and one rounded ball-shaped end.
Functions
Riveting
Shaping metal
Peening
Striking punches and chisels
It is commonly used in fitting and metalworking.
8.2 Cross-Peen Hammer
The peen is positioned across the direction of the handle.
Function
It is useful for:
Starting work in narrow spaces
Shaping metal
Light fabrication work
8.3 Straight-Peen Hammer
The peen is aligned with the handle.
Function
It is used for shaping and forming metal.
8.4 Sledge Hammer
A sledge hammer is a heavy striking tool.
Function
It is used for:
Heavy demolition
Driving heavy objects
Breaking materials
Heavy fabrication work
Because of its high impact force, it requires careful handling.
9. Files
A file is a hardened steel hand tool containing many small cutting teeth.
Files remove small quantities of material and are commonly used for sizing and finishing.
9.1 Flat File
Function
Used for:
Filing flat surfaces
Removing excess metal
Finishing edges
9.2 Round File
A round file has a circular cross-section.
Function
It is used for:
Enlarging holes
Filing curved surfaces
Making grooves
9.3 Half-Round File
A half-round file has one flat surface and one curved surface.
Function
It can be used for:
Flat surfaces
Concave surfaces
Curved work
9.4 Square File
A square file has a square cross-section.
Function
It is used for:
Square grooves
Slots
Keyways
Internal corners
9.5 Triangular File
A triangular or three-square file has a triangular cross-section.
Function
It is useful for:
V-grooves
Angles
Saw-tooth sharpening
Internal corners
10. Drilling Tools
Drilling tools are used to produce holes in materials.
10.1 Hand Drill
A hand drill is a manually operated drilling tool.
Function
It is used for drilling small holes in:
Wood
Metal
Plastic
Other suitable materials
10.2 Electric Hand Drill
An electric hand drill uses a motor to rotate the drill bit.
Functions
Drilling holes
Driving suitable accessories
Light reaming or related operations with compatible attachments
It is widely used in maintenance and fabrication.
10.3 Bench Drilling Machine
A bench drilling machine is mounted on a workbench.
Functions
Drilling
Reaming
Countersinking
Counterboring
Tapping, when equipped and operated appropriately
It provides greater accuracy than a hand drill.
10.4 Pillar Drilling Machine
A pillar drilling machine is a larger stationary drilling machine supported by a column.
Functions
It is used for accurate drilling of:
Metal plates
Machine components
Fabricated parts
The workpiece is normally held using a machine vice or suitable fixture.
10.5 Twist Drill
A twist drill is the most commonly used drilling tool.
Main Parts
Shank
Body
Flutes
Point
Cutting edges
Function
It removes material and creates a cylindrical hole.
11. Reaming Tools
Reaming is a finishing operation used to improve the dimensional accuracy and surface finish of an existing hole.
11.1 Hand Reamer
A hand reamer is operated manually.
Function
It is used to:
Finish drilled holes
Improve hole accuracy
Produce a smoother internal surface
11.2 Machine Reamer
A machine reamer is used with a machine tool.
Function
It provides more accurate finishing of holes when used under appropriate machining conditions.
12. Tapping and Threading Tools
Threads are required for screws, bolts and other fastening systems.
12.1 Tap
A tap is used to produce internal threads in a hole.
Types
Taper tap
Second tap
Plug tap
Function
It cuts internal threads so that a bolt or screw can be fitted.
12.2 Tap Wrench
A tap wrench holds the tap during hand tapping.
Function
It provides controlled turning force while producing internal threads.
12.3 Die
A die is used to produce external threads on rods or bolts.
Function
It cuts external threads on cylindrical workpieces.
12.4 Die Stock
A die stock holds the die during hand threading.
Function
It provides a handle and controlled movement for cutting external threads.
13. Screwdrivers
Screwdrivers are used for tightening and loosening screws.
13.1 Flat-Head Screwdriver
It has a straight blade.
Function
Used for screws having a straight slot.
13.2 Phillips Screwdriver
It has a cross-shaped tip.
Function
Used with Phillips-head screws.
13.3 Interchangeable Screwdriver
This type allows different bits to be fitted to one handle.
Function
It provides flexibility for different screw-head designs.
14. Spanners and Wrenches
Spanners and wrenches are used to tighten or loosen nuts, bolts and fittings.
14.1 Open-End Spanner
It has an open jaw.
Function
Used for tightening and loosening nuts and bolts where access is available from the side.
14.2 Ring Spanner
A ring spanner completely surrounds the nut.
Function
It provides better grip and reduces the chance of slipping.
14.3 Combination Spanner
One end is open while the other end is a ring.
Function
It combines the functions of open-end and ring spanners.
14.4 Adjustable Spanner
An adjustable spanner has a movable jaw.
Function
It can accommodate nuts of different sizes.
14.5 Pipe Wrench
A pipe wrench has serrated jaws designed to grip cylindrical pipes.
Function
It is mainly used in plumbing and pipe-fitting work.
15. Pliers and Gripping Tools
Combination Pliers
Used for:
Gripping
Bending
Cutting wires
General-purpose workshop work
Long-Nose Pliers
Used for:
Holding small components
Working in narrow spaces
Bending wires
Side-Cutting Pliers
Used for:
Cutting wires
Cutting small conductors
Locking Pliers
Locking pliers can be adjusted to grip a workpiece firmly.
Function
They are useful for temporary holding and gripping during repair and fabrication operations.
16. Grinding and Finishing Tools
Grinding removes material using abrasive particles and can also be used for sharpening and finishing.
16.1 Bench Grinder
A bench grinder is fitted with abrasive wheels.
Functions
Sharpening tools
Removing burrs
Grinding small components
Shaping metal edges
16.2 Portable Grinder
A portable grinder can be carried to the work location.
Functions
Grinding welds
Removing rust
Cutting suitable materials with approved discs
Surface preparation
Deburring
Proper guards and personal protective equipment are essential.
16.3 Grinding Wheel
A grinding wheel is made of abrasive particles bonded together.
Function
It removes material through abrasive action.
Different wheels are selected according to the material and operation.
16.4 Emery Paper
Emery paper is an abrasive sheet.
Function
It is used for:
Smoothing surfaces
Removing minor scratches
Cleaning surfaces
Final finishing
17. Sheet-Metal Workshop Tools
Sheet-metal work involves cutting, bending, forming and joining thin metal sheets.
17.1 Steel Rule
Used for measuring and marking sheet-metal dimensions.
17.2 Scriber
Used for marking lines on metal sheets.
17.3 Snips
Used for cutting thin metal sheets.
17.4 Mallet
A mallet is used for shaping sheet metal without causing severe surface damage.
17.5 Hand Seamer
A hand seamer is used for bending and forming sheet-metal edges.
17.6 Stake
A stake provides a support surface for forming and shaping sheet metal.
17.7 Grooving Tool
Used to create grooves and joints in sheet-metal work.
18. Carpentry Workshop Tools
Carpentry involves cutting, shaping, joining and finishing wood.
18.1 Rip Saw
A rip saw is designed primarily for cutting wood along the grain.
Function
It is used for longitudinal cutting of timber.
18.2 Cross-Cut Saw
A cross-cut saw is designed primarily for cutting across the grain.
Function
Used for cutting timber across its grain.
18.3 Jack Plane
A jack plane is a woodworking hand tool with a cutting blade.
Function
It is used for:
Removing excess wood
Flattening surfaces
Preparing timber for finishing
18.4 Chisel
A woodworking chisel has a sharp cutting edge.
Functions
Cutting joints
Removing wood
Making grooves
Shaping timber
18.5 Wooden Mallet
A wooden mallet is used for striking woodworking chisels and assembling joints.
It reduces the possibility of damaging the chisel handle compared with inappropriate striking tools.
18.6 Try Square
Used for:
Checking right angles
Marking perpendicular lines
Checking timber edges
19. Plumbing Workshop Tools
Plumbing tools are used for installing, maintaining and repairing water-supply, drainage and other pipe systems.
19.1 Pipe Wrench
Used for gripping and rotating pipes and fittings.
19.2 Pipe Cutter
Used for cutting pipes cleanly to the required length.
19.3 Adjustable Wrench
Used for tightening and loosening nuts and fittings.
19.4 Basin Wrench
Used for tightening or removing fittings in restricted spaces around basins and sinks.
19.5 Pipe Vice
Used for holding pipes firmly during cutting, threading or fitting.
19.6 Threading Tool
Used for producing external threads on pipe ends.
19.7 Plunger
Used to help clear suitable blockages in plumbing fixtures and drains.
19.8 Pipe Reamer
Used for removing burrs from the inside edge of a cut pipe.
20. Welding Equipment
Welding joins two or more materials by heat, pressure or a combination of both.
20.1 Welding Machine
A welding machine provides the electrical power or other energy required for the selected welding process.
Function
It enables welding operations such as suitable arc-welding processes.
20.2 Welding Electrode
An electrode conducts current and, depending on the process, may also provide filler metal.
Function
It creates or sustains the welding arc and helps form the weld.
20.3 Electrode Holder
The electrode holder securely grips the electrode and conducts welding current.
20.4 Welding Cables
Cables connect the welding power source to the electrode holder and work return connection.
20.5 Welding Helmet
A welding helmet protects the eyes and face from:
Arc radiation
Sparks
Hot particles
Molten metal
The correct filter shade must be selected for the welding process.
20.6 Welding Gloves
Heat-resistant welding gloves protect hands from:
Heat
Sparks
Hot metal
Radiation exposure
20.7 Welding Apron
A welding apron provides additional protection against sparks and heat.
21. Electrical Workshop Tools
Electrical workshop tools are used for electrical installation, maintenance and repair.
21.1 Insulated Screwdriver
Used for tightening and loosening electrical terminal screws.
The insulation provides additional protection, but the tool must be properly rated and electrical safety procedures must still be followed.
21.2 Wire Stripper
A wire stripper removes insulation from electrical wires.
Function
It exposes the conductor without unnecessarily damaging it.
21.3 Wire Cutter
Used for cutting electrical wires and cables.
21.4 Test Lamp
A test lamp can be used in appropriate electrical testing procedures to indicate the presence of voltage, subject to the system and safety requirements.
21.5 Multimeter
A multimeter is a versatile electrical measuring instrument.
Functions
Depending on the model and setting, it may measure:
Voltage
Current
Resistance
Continuity
It is widely used for electrical troubleshooting.
21.6 Clamp Meter
A clamp meter measures electrical current by clamping around a conductor without necessarily disconnecting it.
Function
It is useful for measuring current in electrical circuits while maintaining the circuit configuration.
22. Lifting and Handling Equipment
Large and heavy materials cannot always be moved manually. Appropriate lifting equipment is therefore used.
22.1 Chain Block
A chain block is a manually operated lifting device.
Function
It is used to lift heavy components vertically.
22.2 Lever Hoist
A lever hoist uses a lever mechanism and chain.
Function
It is used for lifting, pulling and positioning heavy objects within its rated capacity.
22.3 Crane
A crane is a machine used for lifting and moving heavy loads.
Functions
Lifting
Lowering
Moving
Positioning heavy materials
Cranes must be operated according to their rated capacity and safety procedures.
22.4 Trolley
A trolley is used for moving materials or equipment horizontally.
23. Workshop Machines
Workshop machines provide powered operations that cannot be performed efficiently by hand tools.
23.1 Lathe Machine
A lathe rotates the workpiece while a cutting tool removes material.
Functions
Turning
Facing
Taper turning
Thread cutting
Drilling
Boring
Knurling
The lathe is one of the most important machine tools.
23.2 Drilling Machine
A drilling machine rotates a drill to produce holes.
Functions
Drilling
Reaming
Countersinking
Counterboring
Tapping where suitable
23.3 Milling Machine
A milling machine uses a rotating multi-point cutter.
Functions
Producing slots
Cutting keyways
Machining flat surfaces
Producing steps
Machining complex profiles
23.4 Shaper Machine
A shaper uses a reciprocating cutting tool.
Function
It is mainly used to machine flat surfaces, slots and other suitable profiles.
23.5 Grinding Machine
A grinding machine uses an abrasive wheel.
Functions
Finishing
Sharpening
Accurate material removal
Surface preparation
24. Important Safety Equipment
Workshop safety is as important as tool selection.
24.1 Safety Goggles
Protect the eyes from:
Flying particles
Dust
Chips
Sparks
24.2 Face Shield
Provides additional protection to the face during operations that produce flying particles, sparks or splashes.
24.3 Safety Helmet
Protects the head from falling or striking objects in appropriate work environments.
24.4 Safety Shoes
Protect feet from:
Falling objects
Sharp materials
Impact
Certain workplace hazards
24.5 Ear Protection
Earplugs or earmuffs reduce exposure to excessive workplace noise.
24.6 Respiratory Protection
Appropriate respiratory protective equipment can reduce exposure to specific airborne hazards when engineering and administrative controls are insufficient.
24.7 Protective Gloves
Gloves may protect hands from suitable mechanical, thermal or chemical hazards. However, gloves should not be used around rotating machinery where they could become entangled.
25. General Workshop Equipment
Apart from hand tools, workshops require several supporting facilities and pieces of equipment.
25.1 Workbench
A workbench provides a stable working surface.
Function
It is used for:
Assembly
Fitting
Repair
Inspection
Small fabrication activities
25.2 Tool Cabinet
A tool cabinet is used for storing and organizing tools.
Importance
Proper storage:
Prevents tool damage
Improves accessibility
Reduces loss
Improves workshop housekeeping
25.3 Storage Rack
Used for storing:
Raw materials
Components
Tools
Finished products
25.4 First-Aid Box
A first-aid box contains basic medical supplies for treating minor injuries until appropriate medical assistance is available.
25.5 Fire Extinguisher
Fire extinguishers are used to control small fires when it is safe to do so and when the extinguisher type is suitable for the fire.
Different fire risks require different extinguishing agents.
26. Selection of the Correct Workshop Tool
Choosing the correct tool is important for efficiency and safety.
The following factors should be considered:
26.1 Type of Material
The tool should be suitable for the material being worked on.
26.2 Type of Operation
The tool must match the operation, such as cutting, drilling, measuring or finishing.
26.3 Required Accuracy
Precision work requires appropriate measuring and machining tools.
26.4 Size of Workpiece
Large and small components may require different holding and cutting arrangements.
26.5 Quantity of Work
For repeated production, power tools or machines may be more efficient than hand tools.
26.6 Safety
The tool must be used according to its intended purpose and manufacturer's instructions.
27. Care and Maintenance of Workshop Tools
Proper care increases tool life and maintains accuracy.
Important practices include:
Clean tools after use.
Store tools in designated locations.
Keep cutting tools sharp.
Lubricate moving parts where required.
Inspect tools before use.
Replace damaged tools.
Avoid using the wrong tool for a particular job.
Keep measuring instruments protected from impact.
Maintain electrical tools and cords properly.
Follow manufacturer's maintenance instructions.
28. Common Causes of Tool Damage
Workshop tools may be damaged due to:
Improper use
Excessive force
Lack of maintenance
Rust
Poor storage
Dropping tools
Using blunt cutting tools
Using incorrect accessories
Overloading power tools
Failure to follow operating instructions
Proper training can greatly reduce tool damage.
29. Workshop Housekeeping
Good housekeeping is an essential part of workshop safety.
The workshop should be kept:
Clean
Dry
Well illuminated
Properly ventilated
Free from unnecessary obstructions
Tools should be returned to their designated storage locations after use.
Oil spills should be cleaned promptly. Scrap materials should be collected and disposed of appropriately.
Good housekeeping reduces:
Slips
Trips
Falls
Tool loss
Fire hazards
Workplace injuries
30. Safe Use of Hand Tools
Important rules for hand-tool safety include:
Select the correct tool.
Inspect the tool before use.
Use tools only for their intended purpose.
Keep cutting edges sharp and properly maintained.
Do not use damaged handles.
Keep hands away from cutting edges.
Wear appropriate PPE.
Keep the workpiece securely held.
Do not carry sharp tools carelessly.
Store tools safely after use.
31. Safe Use of Power Tools
Power tools require additional precautions.
Important Safety Rules
Read the operating instructions.
Inspect electrical cords and plugs.
Use proper guards.
Select the correct accessory.
Wear suitable PPE.
Keep loose clothing away from rotating machinery.
Disconnect power before changing accessories where required.
Do not operate damaged equipment.
Keep the working area clean.
Do not bypass safety devices.
32. Difference Between Hand Tools and Power Tools
Hand Tools
Hand tools are operated primarily using human effort.
Examples:
Hammer
File
Hacksaw
Spanner
Screwdriver
Pliers
Power Tools
Power tools use an external power source such as electricity, compressed air or another suitable source.
Examples:
Electric drill
Angle grinder
Power saw
Welding machine
Portable grinder
Comparison
FeatureHand ToolsPower ToolsPower sourceHuman effortElectricity or other powerSpeedGenerally lowerGenerally higherAccuracyDepends strongly on operatorCan provide greater consistencyPortabilityUsually highVariesMaintenanceGenerally simpleRequires greater careRiskUsually lower, but depends on toolOften higher due to power and moving parts
33. Workshop Tools and Their Main Functions – Quick Reference
ToolMain FunctionSteel RuleMeasuring and markingMeasuring TapeMeasuring long dimensionsVernier CaliperPrecision measurementMicrometerVery accurate measurementTry SquareChecking 90° anglesBevel ProtractorMeasuring anglesScriberFine markingCentre PunchMarking hole centresDividerCircles and dimension transferSurface GaugeParallel markingBench ViceHolding workpiecesG-ClampTemporary clampingPliersGripping, bending and cuttingHacksawCutting metalSnipsCutting sheet metalChiselCutting and chippingBall-Peen HammerStriking, peening and shapingFlat FileFiling flat surfacesRound FileFiling curved surfaces and holesTwist DrillProducing holesReamerFinishing holesTapCutting internal threadsDieCutting external threadsScrewdriverTightening/loosening screwsSpannerTightening/loosening nuts and boltsPipe WrenchGripping pipesBench GrinderGrinding and sharpeningEmery PaperSurface finishingLatheTurning and machiningDrilling MachineDrilling holesMilling MachineMilling and slot cuttingWelding MachineJoining materials by weldingMultimeterElectrical measurementWire StripperRemoving wire insulationChain BlockLifting loadsSafety GogglesEye protectionSafety ShoesFoot protection
34. Importance of Practical Training
Knowing the names of workshop tools is not sufficient. Students must also learn their correct application through practical training.
Practical training develops:
Tool identification skills
Measurement skills
Marking skills
Cutting skills
Fitting skills
Machine operation skills
Maintenance skills
Safety awareness
Problem-solving ability
Students should learn to identify a tool by its shape, construction, working principle and application.
For example, when presented with a vernier caliper, a student should be able to identify it, explain its parts, describe its measuring principle and demonstrate how it is used.
35. Role of Workshop Practice in Engineering
Workshop practice connects theoretical engineering knowledge with practical application.
Engineers need to understand how components are:
Manufactured
Measured
Machined
Joined
Inspected
Repaired
Maintained
A civil engineer may encounter tools and equipment during construction, fabrication, plumbing, surveying support work, structural repair and maintenance. Mechanical and electrical engineers similarly interact with workshop equipment throughout their professional careers.
Therefore, workshop practice develops an appreciation of manufacturing processes, material behavior, tolerances, quality control and workplace safety.
36. Sustainable Use of Workshop Tools
Modern workshops should also consider environmental sustainability.
Important practices include:
Reduce material wastage.
Reuse suitable materials.
Recycle metal scrap.
Properly dispose of oils and chemicals.
Maintain machines to improve energy efficiency.
Use energy-efficient equipment.
Avoid unnecessary operation of machines.
Control dust and emissions.
Store chemicals safely.
Prevent leakage of fuels and lubricants.
Sustainable workshop management reduces environmental impact and operating costs.
37. Advantages of Proper Tool Identification
Correct identification of workshop tools provides several benefits:
Safety
The correct tool reduces the risk of accidents.
Productivity
Workers can select the appropriate tool quickly.
Accuracy
Proper tools help maintain required dimensions and tolerances.
Quality
Correct tool selection improves the final quality of the product.
Cost Saving
Appropriate tools reduce material damage and tool breakage.
Skill Development
Students develop practical knowledge and confidence.
38. Important Points for Students
Students should remember the following points:
Every workshop tool has a specific function.
Measuring should normally be completed before cutting or machining.
Marking should be accurate.
Workpieces must be held securely.
Cutting tools should be maintained properly.
Blunt or damaged tools should not be used.
The correct PPE should be selected for the operation.
Machine guards should remain in place.
Tools should be cleaned and stored after use.
Safety instructions should always be followed.
Measuring instruments should be protected from damage.
Power should be isolated before maintenance when required.
Never use excessive force on a hand tool.
Never use a tool for a purpose for which it was not designed.
Good housekeeping is an essential part of workshop practice.
39. Conclusion
Workshop tools and equipment form the foundation of practical technical work. From simple tools such as hammers, screwdrivers, spanners and files to advanced equipment such as lathes, drilling machines, milling machines, welding machines and electrical testing instruments, each tool performs a specific function.
Measuring tools provide accuracy, marking tools establish the required layout, holding tools secure the workpiece, cutting tools remove material, striking tools provide impact, files provide finishing, drilling tools produce holes, threading tools produce internal and external threads, and machines perform high-speed or precision operations.
Proper knowledge of tools enables students and technicians to select the correct equipment, use it efficiently and maintain it safely. Tool maintenance, proper storage and good workshop housekeeping further increase tool life and reduce accidents.
Workshop practice is therefore not simply about learning the names of tools. It is about developing the ability to identify, select, operate, maintain and safely use tools and equipment for specific engineering tasks.
A well-trained technician or engineer should understand both the function of a tool and the limitations of that tool. The correct tool, used correctly and safely, results in better quality, greater productivity, lower material wastage and a safer workplace.
Thus, the study of workshop tools is an essential part of technical education and provides students with the practical foundation required for successful careers in engineering, manufacturing, construction, maintenance and allied industries.
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Summary
Workshop Tools: Identification and Functions
Workshop tools and equipment are essential for carrying out various engineering, manufacturing, repair and construction activities. They are used for measuring, marking, cutting, holding, drilling, shaping, joining and finishing materials.
Common measuring tools include the steel rule, measuring tape, vernier caliper and micrometer, which are used to determine dimensions accurately. Scribers, centre punches and dividers are used for marking workpieces. Bench vices and clamps hold materials firmly during operations. Cutting tools such as hacksaws, chisels and snips are used to remove or divide material. Hammers provide impact for striking, shaping and fitting.
Files are used for removing small amounts of material and improving surface finish. Drills and drilling machines produce holes, while taps and dies create internal and external threads. Other important equipment includes grinders, welding machines, lathes and milling machines.
Proper tool selection, maintenance, storage and safety precautions are essential for accurate, efficient and safe workshop operations.