State one reason for drilling a pilot hole - Leaving Cert Engineering - Question c, d - 2009
Question c, d
State one reason for drilling a pilot hole.
Identify the cutting tool shown.
Worked Solution & Example Answer:State one reason for drilling a pilot hole - Leaving Cert Engineering - Question c, d - 2009
Step 1
State one reason for drilling a pilot hole.
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Answer
One reason for drilling a pilot hole is to provide guidance to a larger drill when drilling a larger hole. This helps ensure that the larger drill stays on the intended path and reduces the risk of drilling at an incorrect angle.
Step 2
Identify the cutting tool shown.
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Answer
The cutting tool shown is a countersink drill. This type of drill is used to create a conical hole that allows a screw head to sit flush with the surface of the material.
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