Provided you have not glued in your nocks....pull the nock and put a drill bit that just fits into the shaft inside.
Hold the arrow shaft with one hand and tip the drill bit back, cover the end with your other thumb....whip the arrow quickly and deliberately down in one motion....repeat until the tip breaks free.
Do this in an area where a flying tip or drill bit won't injure anyone or anything.
This is the best way to remove glued in tips. Trust me.
Also never glue in your nocks or pin nock bushing, use a plastic bag to hold them in, that way they can always be removed and they will hold tightly. Cover the inserted end with a plastic bag...push into arrow all the way and cut away excess with a sharp blade.
LC
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