Milling collet chart

[abunaitoo]

I've looked on the web, but can't find what I'm looking for.
I have a box of milling collets.
I'm looking for a chart that would show what the different collets are.

[Nueces]

If the collets are a straight taper with internal threads at the back, they likely are Morse taper or Brown & Sharpe taper. If the rear is straight and the nose has a steeper taper, they are likely R8. A search for these will yield some hits with pictures and dimensions. A photo of yours, with some basic dimensions, would help here.

Of course, I'm taking you at your word that you have milling collets, intended for use in a milling machine. But, I must wonder how you know they are milling collets without knowing what they are, so perhaps I should not assume. There also are lathe collets, various of the C series, watchmakers collets, industrial rapid taper collets, all sorts.

As I said, a photo and some dimensions would reveal all.

[paul h]

Get a machinery handbook, it will have dimensions for all the different types of collets. I'm sure you could get an older edition off of flea bay or amazon.

[PaulG67]

https://www.bing.com/search?q=collets+hardinge&form=EDGNTC&qs=AS&cvid=3619b6acf9454036bfa357838cf853e6&pq=collets

[smokeywolf]

Kearney & Trecker and Van Norman have their own collets. Elgin who made a small horizontal mill also had their own collet.

Any chance you can put up a picture of a couple of your collets?

[M-Tecs]

MSC direct will have pictures.

[abunaitoo]

I have one bag of 10 each of 5C and R8.
These are the ones I'm not familiar with.
The first three maybe lathe collets.
I have 1 of the first one, 5 of the second, 2 of the third and 1 of the last one.
The last one is either a 16C or 3J ??????
186302

[paul h]

Third from the left looks like an RCBS bullet puller collet, but that's just a SWAG w/o dimensions.

Some machinery and tooling uses custom collets for holding work, which is what the two on the left kinda look like.

[smokeywolf]

Length and major (largest) dia. of collet body on right? Doesn't look like 16C or 3J.

Never seen the others. They could be custom. 3rd from left looks like something from a cutter grinder or dividing head.

[Alstep]

A page from Travers catalog. A good source of machine shop supplies, by the way.

http://www.travers.com/search.aspx?keyword=collets

[abunaitoo]

It's way to big to be a RCBS collet.

[abunaitoo]

Have no idea what the first one is. It is not threaded
186320186321

Second one is, I think for a lathe.
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Third could be also for a lathe. It is threaded.
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Last one looks like a big 5C
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[Jeff Michel]

The one on the far right looks like the ones used in a Deckle tool grinder (D bit)

[Ballistics in Scotland]

Here is a pretty good summary of the C series collets, and a few of their friends and relations. It includes some in the process of vanishing without trace, or perhaps have already done so. I use 5c and morse collets, and 5c give about the biggest choice of sizes, including for hexagonal stock, other than the small watchmaking collets. You can also buy 5c collets with a soft front end, often much larger than the collet body, to turn to the diameter you need.

http://www.tools-n-gizmos.com/specs/C_Collet.html

You think that is complicated? Here are plenty more:

http://www.tools-n-gizmos.com/specs.html

Here are the simple machine tapers often used in collets:

https://en.wikipedia.org/wiki/Machine_taper

It is also possible that what looks like a collet is actually some unknown machine part, which has only ever existed in one size.

[abunaitoo]

Last one is a 3H Hardinge in 5/8" according to the chart.

[abunaitoo]

Number 3 is a collet for a Snap-On threaded stud puller, CG500.
1/4"-28.
http://public.snapon.com/R_RRD/ItemDetailImages/CG503.jpg
Two down, two to go.

[abunaitoo]

Number 2 looks like it might be for a Watch makers lathe.
186394

[Strtspdlx]

first one is for a quick draw collet setup. no idea which one but thought it may help.

[abunaitoo]

What's a quick draw collet????
Did a google, but didn't find anything.