2.1-Marking-out-and-measuring
2.1-Marking-out-and-measuring
2.1-Marking-out-and-measuring
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MARKING OUT FACTSHEET<br />
Centre Punch<br />
Uses<br />
Advantages<br />
<br />
<strong>Marking</strong> points on materials<br />
<br />
Greater accuracy<br />
like metal <strong>and</strong> plastic which<br />
will later be used for drilling<br />
<br />
Drill bit less likely to slip or<br />
move around when starting a<br />
hole<br />
Disadvantages<br />
<br />
Point become blunt over time<br />
<br />
Punch marks can be difficult<br />
to see on certain plastics<br />
<br />
Possible chance the head will<br />
mushroom with continuous<br />
sharpening<br />
MARKING OUT AND MEASURING GCSE RESISTANT MATERIALS @PENYRHEOLDT
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