Drill Out. Some roll pins may be so tight or rusted inside the hole that the only alternative is to completely remove the pin by drilling it out with a carbide bit . Caution must be exercised as the drill bit may attempt to wander off the center of the pin. This can cause a mis-centered or an oblong hole.
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Can roll pins be reused?
Things which only deform elastically (and spring back) are fine to re-use ; think which deform plastically (so come out a different shape) aren’t. I think roll pins are elastic.
How do you get a stuck pin out?
Saturate all exposed areas of the pin with rust penetrating oil . This is usually squirted onto the pin’s surface. Allow the oil to sit on the pin for 24 hours.