FS P&W 3PN collet lot

Rex TX · Dec 28, 2018

12 3PN collets as used on the Pratt & Whitney #3 millers and probably others.
Missing two sizes (1/8 3/8) to make a full set, but no duplicates:

3/32 5/32 7/32 1/4 9/32 5/16 11/32 3/8 13/32 7/16 15/32 1/2

2nd photo includes a larger 3C collet for comparison.
The rack is included

$125 shipped USPS US addresses

View attachment 245482
View attachment 245483 View attachment 245484

discodan · Dec 28, 2018

Hey Rex, I can't open the attachments. I don't need the collets but I was responding on another thread today talking about the dimensions of 3pn collets. Here are the dimensions of the one I have. Can you confirm if yours have similar dimensions? Thanks.
View attachment 245503

Rex TX · Dec 28, 2018

I don't know why the images don't show. It looked fine when I posted it.

At any rate, here is how your dimensions compare to mine, CW from upper left:
.6535 same
0.30 vs .360 approx
.6475 dia - same
.561 vs .540
.641-24 TPI same
2.063 OAL vs 2.10"
.895 head dia vs .917

I think it's a match where it counts.

BTW, these are Porst Bros. collets.

Rex TX · Dec 28, 2018

Re-try on photos

Rex TX · Jan 21, 2019

I have listed these on ebay as well, so if interested please email from my profile info so I can kill the ebay listing.

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