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Old 10-25-2017 | 12:37 PM
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bolar
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I use 4B lead in a .5 mechanical pencil. It's soft, you can't bear down on it like you would with regular lead. 4B will mark the softest balsa.

https://www.amazon.com/Pentel-Hi-Pol...ywords=4b+lead
Last edited by bolar; 10-29-2017 at 02:01 PM.
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