The operation of smoothing and squaring the surface around a hole is known as?

Question

The operation of smoothing and squaring the surface around a hole is known as?

Counter-sinking
Counter-boring
Trepanning
Spot facing

LohaHridoy

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2025-01-04 04:42

1 Answers

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AhmedNazir · Accepted Answer · 2022-09-01T13:21:41+06:00

Answer: Option 4

The most common application of spot facing (spot facing) is facing the area around a bolt hole where the bolt's head will sit, which is often done by cutting a shallow counter bore, just deep enough "to clean up"—that is, only enough material is removed to get down past any irregularity and thus make the surface flat.