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[Newbie] Need help identifying collets

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Shortstack

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Oct 27, 2018
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#1
Hi guys,
I recently acquired a fairly large assortment of machine tools, including an aciera mill and a bridgeport "M" head which i'll be adapting to fit the mill, the head came with a collet chuck and one collet (the smaller one) for which i can't find any documentation. it's ~27mm at the widest part ~38mm long, it uses a spring to eject from the taper, and does not use a drawbar. the other appears to be for holding discs or washers and i have a huge assortment of them but same thing, no documentation, that one does use a drawbar though.
P_20181109_143248.jpg
thanks.
 

4ssss

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#2
1 looks like a screw machine collet and the other looks like it may go in a tapping head
 

Shortstack

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#3
what is a screw machine collet? and I don't think it's a tapping head collet because I have the chuck for it and it doesn't have the arm thingy out the side. it's like an ER collet chuck but has a spring in the back and I think the taper is different.
 
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