Trying to ID some old collets

Probably WW-II vintage collets for Logan's proprietary production closer, which was mounted ahead of the spindle and did not utilize a drawtube.

As long as someone else is asking about collets.....
I have about 150 that I haven't been able to I.D. either. They're about .565 dia x 1.25 long with no thread for a draw tube. profile is similar to what GTO posted except nose isn't tapered and they are smaller
Also in the same box, .75 O.D. x .1.5 long and many .375 O.D. x 1.25 long (these have a tapered nose)
Yea, it's a little hard without posting a pic but I was hoping someone might at least know what to look into so I could try and ID them myself.
Or...if you can use em, let me know. I'm kinda tired of tripping over them. I'll give better details and send a pic.
Koz
Peter H. wrote:

Those look like screw machine collets, not much use in a home shop lathe. I had some that were similier and ended up dumping them, no ebay buyers. I had worked at Amphenol in the past and one of the old machine operators said they used collets like that 40 years ago, most were made in house.

Probably fits the spindle of a turret lathe or automatic screw machine. You may be able to ID them from one of the docs here:
I just quickly scanned the Hardinge workholding catalog and the first match I see is for a Hardinge no. MP1287 which fits a Pratt & Whitney #2 turret lathe.
Ned Simmons

Brown and Sharp Dead Length collets. They go into a holder that clamps the collets without changing the length. This is an older type Ive only seen a couple times before.
YMMV
Gunner
"In my humble opinion, the petty carping levied against Bush by the Democrats proves again, it is better to have your eye plucked out by an eagle than to be nibbled to death by ducks." - Norman Liebmann

Hey Koz,
Hmmmmm.....without going out to the shop to measure, these might be the collets used on a drill sharpener. They would chuck into a holder collet on the machine, one collet for each size drill but. Mine has from 1/16 to 1/2 by 64ths, plus A to Z letter, plus 1 to 59 Number. They have the drill size stamped on the face of each.
Take care.
Brian Lawson, Bothwell, Ontario. XXXXXXXXXXXXXXXXX

Now that makes sense..there are a ton of sizes that tend to be in the wire range. I'll have to look at the markings and see if there are any old letter or wire sizes stamped on em.
Koz

The LOGAN Nose Closer Collet AC-50 requires a collect depicted in you Post with the measurements of: Length 2.540 Rear .875 Front 1.225 th "Face .925-- certainly would be GREAT if the ones you have met thes measurements myself and others NEED them !!!! An E-Mail to myself woul be appreciated- being new to this Site I do not know if this will appea as a Group Message or not !! (the LONE Collet I have is marke Precission 480- it is VERY lonesome) Thanks Artie in Conn
-- Artie