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		 I use a metal cutting bladeon my dremal, the space it leaves is just enough to slip over the swivel, I then use a pair of needle nose vise grips to gently squeeze both ends together, this distorts the hook minimumly, then as a precaution (mostly to keep from corroding) I solder the "cut" with a drop of rosin core solder, the solder wont stick to the plating... but , it will stick to the fresh cut.... 
 
 I do most of my needles this way.. 
		
		
		
		
		
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