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Can someone identify this collet please

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Chris Shelton	23/08/2012 17:54:11
92 forum posts 46 photos	I won 10 x DK20 collets on an auction site and received these, can anyone identify them please, I would like to let the seller know what he has sent. They are 60.5mm long and the major external daimeter is 35.00mm, a 1p coin is included to give some idea of the size. Any help would be appreciated. Thank you
Stub Mandrel	23/08/2012 21:56:06
4318 forum posts 291 photos 1 articles	Never heard of them before, but google has plenty of hits (not just ebay) they mighht be Hardinge or 'System Erickson' Neil
Nathan Sharpe	23/08/2012 23:35:02
175 forum posts 3 photos	I may be wrong but I use DA 180 collets which are cross referenced I think as DK 18. Try a search for DA 200. Mine are , as Neil suggested, Erickson collets. Nathan.
mick	24/08/2012 08:03:27
421 forum posts 49 photos	Could be wrong but they look like Myford one size spindle collets, if so they are tightened with a knurled ring that screws onto the spindle thread.
David Clark 1	24/08/2012 09:30:15
3357 forum posts 112 photos 10 articles	Hi There I think we used these in large milling holders. A search in some of the industrial catalogues may help. regards David
JasonB	24/08/2012 13:12:08
25215 forum posts 3105 photos 1 articles	Look a lot like the TG ones on Rotagrips site
Chris Shelton	24/08/2012 14:32:21
92 forum posts 46 photos	Thank you all for the replies, I looked under Erikson and I think they are TG100's.

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