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some ball point pens have a small hole in the main body of the pen. what is the purpose of this hole?

some ball point pens have a small hole in the main body of the pen. what is the purpose of this hole?

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1 Answers

bhanuveer danduboyina
95 Points
11 years ago

One reason is that to prevent the ink from drying and the other reason is to balance the atmospheric pressure so that the ink does not leak out.

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