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Collets

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anthony daborn	31/03/2010 22:10:48
8 forum posts	How can one identify which of the numerous type''s of EC collets one has? What does the no. signify i.e. 25, 35, 40 , is it the length ? , the dia. at the nose? My holder has a parallel shank which is blind and so I think it might be for tapping only ? Can anyone point me towards any articles covering this subject and what is the need for so many EC Types? Tony D
Richard Shute	31/03/2010 23:50:55
7 forum posts	Posted by anthony daborn on 31/03/2010 22:10:48: How can one identify which of the numerous type''s of EC collets one has? What does the no. signify i.e. 25, 35, 40 , is it the length ? , the dia. at the nose? My holder has a parallel shank which is blind and so I think it might be for tapping only ? Can anyone point me towards any articles covering this subject and what is the need for so many EC Types? Tony D Hello Tony, I have not heard of EC collets, I suspect you mean ER collets in which case the number is the notional maximum diameter in mm at the intersection of the two outer tapers. There is actually a groove there so it is not a dimension you can measure. Richard

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