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Old December 11, 2009, 11:14 AM   #1
grass range
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Join Date: October 28, 2009
Posts: 13
Colt Police Positive

I need to clean up the threads in a Colt Police Positive. This requires a 32tpi tap with a taper as the barrel at the back is.550 and .560 at the shoulder. I tried MSC Machine twice and no one got back to me
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Old December 11, 2009, 08:29 PM   #2
Dfariswheel
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Join Date: May 4, 2001
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Call the Brownell's Tech department. They may have them, or will know who does.
What you need is a .5634-32 tapered .017" tpi.
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Old December 11, 2009, 09:35 PM   #3
zxcvbob
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Join Date: December 20, 2007
Location: S.E. Minnesota
Posts: 4,198
How about a needle file (or riffler), and chase them by hand?
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Old December 14, 2009, 06:57 PM   #4
Old Guard Dog
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Join Date: December 23, 2008
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I used to have a thread file to dress nicked threads. It was four-sided, and had different TPI on each flat, and on each end. I don't know what happened to it, but I would like to have one again.
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