Drilling (Junior Cert Engineering): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
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Practise the cards
15 cards from this deck
Rotating cutting tool that creates cylindrical holes
Rotating cutting tool that creates cylindrical holes
Drill bit
Floor-standing equipment for accurate hole drilling
Floor-standing equipment for accurate hole drilling
Pillar drilling machine
System that changes drilling speeds on pillar drill
System that changes drilling speeds on pillar drill
Stepped pulley system
Material twist drills are manufactured from
Material twist drills are manufactured from
High-speed steel
Standard point angle for general purpose drilling
Standard point angle for general purpose drilling
Max drill diameter for parallel shank in chucks
Max drill diameter for parallel shank in chucks
What must be removed before starting drilling machine
What must be removed before starting drilling machine
Chuck key
Material placed under work when drilling through
Material placed under work when drilling through
Scrap wood
Speed requirement for larger drills
Speed requirement for larger drills
Slower speeds
Small hole drilled before using larger drill
Small hole drilled before using larger drill
Pilot hole
Hole slightly larger than bolt/screw passing through
Hole slightly larger than bolt/screw passing through
Clearance hole
Process to enlarge hole opening for countersunk screws
Process to enlarge hole opening for countersunk screws
Countersinking
Process to increase hole diameter to specific depth
Process to increase hole diameter to specific depth
Counterboring
Direction reamers must always be turned
Direction reamers must always be turned
Clockwise
Two purposes of cutting fluids in drilling
Two purposes of cutting fluids in drilling
Cool and lubricate