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Automotive Mechatronics Technology  ·  Level 6
Workshop Technology Principles
Chapter 5: Use drills to make holes
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⚑ What you will be able to do

By the end of this chapter, you will be able to:

  • mark hole centers and use a center punch accurately according to the operation plan
  • select and mount the right drill bits safely and correctly for each job
  • mount and clamp your work piece securely, following workshop safety regulations
  • drill holes to the correct specifications safely and accurately as required
  • inspect your drilled holes carefully to make sure they meet all required specifications

Mastering these skills will help you work confidently and safely, ensuring high-quality results in any workshop setting.

Chapter Practical Activities

Practical 1: Select and Prepare Drill Bits for Drilling Operations

Automotive Mechatronics Technology · Level 6
Workshop Technology Principles
PRACTICAL ASSESSMENT
TIME: 4 HOURS
⬇ PDFCandidate Instructions (Candidate Tool)

Type: Individual

INSTRUCTIONS TO CANDIDATE:
1.  You are required to perform the following task:
i.  Select appropriate twist drill bits and prepare (sharpen and check) a 10mm diameter drill bit for metal drilling as per the workshop standards.
2.  You have been provided with the following resources for the practical task:
Tools & EquipmentMaterials
Twist drill bits set (sizes 6mm, 8mm, 10mm, 12mm)Cleaning cloth
Drill bit sharpening stoneOverall/Over coat
CaliperSafety boots
Center punch
Hammer
Safety goggles
⬇ PDFResources Required (Cutting List)
S/NItemQuantity
1Twist drill bits set (sizes 6mm, 8mm, 10mm, 12mm)1 set per Candidate
2Drill bit sharpening stone1 pc per Candidate
3Caliper1 pc per Candidate
4Center punch1 pc per Candidate
5Hammer1 pc per Candidate
6Safety goggles1 pair per Candidate
7Overall/Over coat1 per Candidate
8Safety boots1 pair per Candidate
9Cleaning cloth100g per Candidate
⬇ PDFAssessor Guide
Items to be EvaluatedMarks AvailableMarks ObtainedComments
TASK 1: PPE and Work Preparation
Wore safety goggles
(Award 1 mark or zero)		1
Wore overall/over coat
(Award 1 mark or zero)		1
Wore safety boots
(Award 1 mark or zero)		1
Assembled all tools and materials at the workstation
(Award 1 mark or zero)		1
Sub-Total4
TASK 2: Selection and Measurement of Drill Bits
Selected a 10mm twist drill bit suitable for metal drilling
(Award 2 marks or zero)		2
Measured drill bit diameter accurately using caliper
(Award 2 marks or zero)		2
Checked drill bit for visible defects such as cracks or chips
(Award 1 mark or zero)		1
Sub-Total5
TASK 3: Preparation of Drill Bit
Sharpened the drill bit correctly using sharpening stone to appropriate angles
(Award 3 marks or zero)		3
Used center punch and hammer to mark drill point if required
(Award 2 marks or zero)		2
Cleaned the drill bit using cleaning cloth after sharpening
(Award 1 mark or zero)		1
Sub-Total6
TASK 4: Final Inspection and Documentation
Inspected sharpened drill bit for correct cutting angles and symmetry
(Award 2 marks or zero)		2
Verified drill bit size again before submission
(Award 1 mark or zero)		1
Completed documentation/logbook entry for prepared drill bit
(Award 1 mark or zero)		1
Sub-Total4
PRODUCT CHECKLIST
Drill bit diameter is 10mm ±0.1mm as measured with caliper
(Award 2 marks or zero)		2
Drill bit cutting edges are sharp, symmetrical, and free from chips
(Award 3 marks or zero)		3
Drill bit point angle conforms to standard 118° for metal drilling
(Award 3 marks or zero)		3
Drill bit is clean and free from oil or debris
(Award 1 mark or zero)		1
Sub-Total9
GRAND TOTAL28
ASSESSMENT OUTCOME:   ☐ Competent    ☐ Not Yet Competent (competent if at least 50%)

Practical 2: Set up and secure workpiece for drilling

Automotive Mechatronics Technology · Level 6
Workshop Technology Principles
PRACTICAL ASSESSMENT
TIME: 3 HOURS
⬇ PDFCandidate Instructions (Candidate Tool)

Type: Individual

INSTRUCTIONS TO CANDIDATE:
1.  You are required to perform the following task:
i.  Set up and securely clamp a mild steel plate 200mm x 150mm x 6mm on the drilling bench to ensure stability during drilling.
2.  You have been provided with the following resources for the practical task:
Tools & EquipmentMaterials
Bench viceMild steel plate 200mm x 150mm x 6mm
C-clampsSafety goggles
Marking scriberSafety gloves
Center punch
Hammer
Measuring tape or steel rule
Drill machine
⬇ PDFResources Required (Cutting List)
S/NItemQuantity
1Mild steel plate 200mm x 150mm x 6mm1 Pc per Candidate
2Bench vice1 Pc per 2 Candidates
3C-clamps2 Pcs per Candidate
4Drill machine (hand drill or pillar drill)1 Pc per Candidate
5Safety goggles1 Pair per Candidate
6Safety gloves1 Pair per Candidate
7Marking scriber1 Pc per Candidate
8Center punch1 Pc per Candidate
9Hammer1 Pc per Candidate
10Measuring tape or steel rule1 Pc per Candidate
⬇ PDFAssessor Guide
Items to be EvaluatedMarks AvailableMarks ObtainedComments
TASK 1: Preparation and securing workpiece
Wore safety goggles and gloves before starting the task
(Award 1 mark each for goggles and gloves worn)		2
Measured and marked the drilling points accurately on the mild steel plate
(Award 2 marks for accurate marking, zero if incorrect)		2
Used center punch and hammer to create drill point indentations
(Award 2 marks for proper use of center punch and hammer)		2
Positioned the mild steel plate correctly on the bench vice or workbench
(Award 2 marks for correct positioning)		2
Secured the workpiece firmly using bench vice and/or C-clamps to prevent movement
(Award up to 3 marks for proper clamping and stability)		3
Checked the stability of the workpiece by attempting slight movement after clamping
(Award 2 marks for ensuring no movement)		2
Ensured the drill machine is positioned correctly for the intended drilling operation
(Award 2 marks for correct drill positioning)		2
Maintained a clean and organized working area throughout the setup
(Award 1 mark for good housekeeping)		1
Sub-Total16
PRODUCT CHECKLIST
Workpiece is firmly clamped and stable with no movement during handling
(Award 3 marks for firm and stable clamping)		3
Drill points are clearly marked and punched at correct locations within ±2mm accuracy
(Award 3 marks for accurate marking and punching)		3
Workpiece is positioned flat and level on the drilling bench or vice
(Award 2 marks for correct positioning)		2
No visible damage or deformation to the workpiece from clamping
(Award 2 marks if no damage is observed)		2
Sub-Total10
GRAND TOTAL26
ASSESSMENT OUTCOME:   ☐ Competent    ☐ Not Yet Competent (competent if at least 50%)
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🔒Marking and Setting Out Drilling Points on a Mild Steel PlatePractical 3
🔒Operate hand drill to make holes of specified diameter and depthPractical 4
🔒Operate pillar drill to produce accurately positioned holesPractical 5
🔒Drill holes in a metal workpiece using a pillar drillPractical 6
🔒Drill Accurate Holes in a Wooden WorkpiecePractical 7
🔒Drill precise holes in a plastic workpiecePractical 8
🔒Countersink and Counterbore Drilled Holes on Mild Steel PlatePractical 9
🔒Clean and finish drilled holes in mild steel platePractical 10
Am I competent?

At the start of this chapter we promised you would be able to:

  • mark hole centers and use a center punch accurately according to the operation plan
  • select and mount the right drill bits safely and correctly for each job
  • mount and clamp your work piece securely, following workshop safety regulations
  • drill holes to the correct specifications safely and accurately as required
  • inspect your drilled holes carefully to make sure they meet all required specifications

Tick each one you can genuinely do.

So, are you there yet?

You're competent when you can confidently do 50% or more of what this chapter promised.

Sign in to record how you're doing.

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