Не понятна причина спора. Развёртка - это инструмент. Ведь не используете же вместо отвёртки монету на поле? Вы на один полёт пришли на поле полетать? Если да, тогда можно и сверлом рассверлить. Если нет, тогда про развёртку collapse правильно написал. Она в полётном ящике должна быть. Если не устраивает пилотажевская по размерам, купите подходящего диаметра в магазине и, по необходимости, подгоните на шлифовальном станке под нужный диаметр. Заводы с такими станками найти не сложно. В любом инструментальном цеху есть.
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