Unknown Collet

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angelo49
Posts: 56
Joined: Tue Jan 01, 2008 8:20 pm
Location: Brooklyn, NY Paradise, PA

Unknown Collet

Post by angelo49 »

I've searched thru many collet specs / charts but cannot identify
this collet, although it looks like a common collet.
Angelo
unknown1.jpg
unknown2.jpg
Angelo
Mr Ron
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Joined: Tue Dec 22, 2009 12:36 pm
Location: Vancleave, Mississippi

Re: Unknown Collet

Post by Mr Ron »

It could be a collet for a jeweler's lathe.
Mr.Ron from South Mississippi
SteveM
Posts: 7763
Joined: Mon Jun 27, 2005 6:18 pm
Location: Wisconsin

Re: Unknown Collet

Post by SteveM »

Even the Hardinge catalog doesn't have a match.

And somewhere, someone is probably looking for that collet.

Steve
angelo49
Posts: 56
Joined: Tue Jan 01, 2008 8:20 pm
Location: Brooklyn, NY Paradise, PA

Re: Unknown Collet

Post by angelo49 »

Even the Hardinge catalog doesn't have a match.
I've looked thru dozens of charts and many jewelers lathe specs
but nothing come close. And it's such a nice looking collet :mrgreen:
Angelo
John Hasler
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Re: Unknown Collet

Post by John Hasler »

What's the angle?
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neanderman
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Re: Unknown Collet

Post by neanderman »

SteveM wrote:And somewhere, someone is probably looking for that collet.
:D
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spro
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Re: Unknown Collet

Post by spro »

I think that is a shop made collet. When you expand the view, you can see many "tells".
angelo49
Posts: 56
Joined: Tue Jan 01, 2008 8:20 pm
Location: Brooklyn, NY Paradise, PA

Re: Unknown Collet

Post by angelo49 »

spro wrote:I think that is a shop made collet. When you expand the view, you can see many "tells".
I don't see any signs of it being shop made. I'm away now and I'll get the angle tomorrow.
Anyway, I have 2 of em'.
Angelo
unknown3.jpg
Angelo
earlgo
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Joined: Sat Jan 29, 2011 11:38 am
Location: NE Ohio

Re: Unknown Collet

Post by earlgo »

I was sure it was a W-8 watchmaker's collet but then couldn't prove it. The W8s are 8mm.

At last someone has found an example of the elusive 'whatchacallit".

--earlgo
Before you do anything, you must do something else first. - Washington's principle.
SteveM
Posts: 7763
Joined: Mon Jun 27, 2005 6:18 pm
Location: Wisconsin

Re: Unknown Collet

Post by SteveM »

earlgo wrote:At last someone has found an example of the elusive 'whatchacallit".
I have a whole box of 'whatchacallit' collets.

At first, we thought they were Stark (they came in a box with a Stark slide rest).

The collets have a body diameter of 0.679". The threads are 0.680-24tpi. Threads are about 9/16" long and the collets are about 2.4" long.

Shopswarf shows a Stark 3-1/2 collet 0.695x24 threads. Hardinge shows it as 0.690x24tpi. Hardinge has the length slightly longer at 2.563".

The collets are stamped "Van Norman", but the only Van Norman collets shown are Van Norman No. 5 (5V) and Van Norman No. 112 (20V), and both are too big.

Tony Griffith:
http://www.lathes.co.uk/vannorman/
mentions Van Norman 3 and 3-1/2 lathes, but doesn't indicate what collets they take.

The angle (on one side) is about 15 degrees.
VanNormanCollet.jpg
Steve
earlgo
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Location: NE Ohio

Re: Unknown Collet

Post by earlgo »

Steve do you still have your whatchacallets? A friend just got a Stark 3 1/2 and might be interested if the price is right.
--earlgo
Before you do anything, you must do something else first. - Washington's principle.
SteveM
Posts: 7763
Joined: Mon Jun 27, 2005 6:18 pm
Location: Wisconsin

Re: Unknown Collet

Post by SteveM »

I still have them.

I suspect they could work if you made your own drawbar to the necessary length.

Steve
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