Collets

[VicParticipant @vic]

It's only a tiddler Clive but this one has an ER spindle.

http://www.littlemachineshop.com/products/product_view.php?ProductID=4660&category=

[Ketan SwaliParticipant @ketanswali79440]

Posted by AndyP on 01/12/2014 21:35:59:

Can anybody suggest a current source of the 'Chinese non-standard ER style' collets as individual collets to make up my set ?

Andy

Andy,

Did you ask Chester U.K.?

Its been a while since we handled them. We don't have any to check clearly. If they are as per Jasons dimensions picture, they 'may be' – Chinese Q24-16, where 24 stands for diameter, and 16 stands for – upto 16mm maximum capacity. The only difference i can see between Jasons drawing and manufacturers is the angle. Jasons picture shows 8 degrees, and the manufacturers drawing shows 10 degrees. these are not something we do, and not something we can get, but if you do a search for 'Q24-16 Chinese Collets', it will come up with tons of Chinese suppliers, non of whom will have a clue or full dimensional drawing to give you, so, good luck. This is the nearest information i can come up with, and it is not 100% reliable.

Ketan at ARC.

[Ketan SwaliParticipant @ketanswali79440]

Posted by Vic on 02/12/2014 09:13:02:

It's only a tiddler Clive but this one has an ER spindle.

http://www.littlemachineshop.com/products/product_view.php?ProductID=4660&category=

Vic,

Technically, Clive is correct, and your link is a good example. However, the MT2 version sells more, due to the perceived flexibility of the MT2 by way of available tooling.

Ketan at ARC

[JasonBModerator @jasonb]

Ketan, that drawing was saved from your site, and I also got some individual collect when you had them as clearance items. They certainly fit my holder which came with my X3 from Engineers Toolroom. I don't use that holder much now but it is a bit smaller dia than the ER32 so handy when working close to an edge or chuck etc.

[Ketan SwaliParticipant @ketanswali79440]

Posted by JasonB on 02/12/2014 13:26:34:

Ketan, that drawing was saved from your site, and I also got some individual collect when you had them as clearance items. They certainly fit my holder which came with my X3 from Engineers Toolroom. I don't use that holder much now but it is a bit smaller dia than the ER32 so handy when working close to an edge or chuck etc.

Thanks Jason, that is good to know

Ah well, how time flies.We used to buy them though SIEG in those days, so the measurements were probably taken by us at the time from physical stock, but cant be sure, as don't have any to cross check any more either. Still don't know clearly if they are called Q24 either..

Ketan at ARC.

[AndyPParticipant @andyp13730]

Ketan, thank you, that gives me a start, I too got some individual imperial collets from you when you had them on clearance and they fit my MT2 holder which indeed came from Chester with my Cobra (X1) mill. The mill has now sprouted an X1L table from you – vast improvement.

Andy

[Neil LickfoldParticipant @neillickfold44316]

The best of the ER collets are made by the BiG company in Japan. The Australian collet is like an ER series but has an 8 deg included angle not 16 like that of the Rego Fix design.

To make home made specials, the ER32 are easy to make in the home shop.

As to holding power for cutters, the Australian 8 deg included taper have more gripping capability, but the cutter body needs to be engaged for the full length of the collet like that of the ER series.

Neil

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