Will a da180 collet fit into a er32 collet chuck?

Will a da180 collet fit into a er32 collet chuck?

This topic has 7 replies, 7 voices, and was last updated 31 January 2024 at 12:32 by Howard Lewis.

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29 January 2024 at 18:21 #710702
Andrew Schofield
Participant
@andrewschofield
I would like to purchase a collet block to hold round stock in a milling vice and I already have a set of Erickson DA180 collets and was wondering if an ER collet chuck would hold a DA collet and if so what size?
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29 January 2024 at 18:37 #710711
Michael Gilligan
Participant
@michaelgilligan61133
It would be worth having a look here:

https://www.practicalmachinist.com/forum/threads/da180-versus-er32.76346/

MichaelG.
29 January 2024 at 18:38 #710713
JasonB
Moderator
@jasonb
I would think you will have to make your own blocks for the DA collets.
29 January 2024 at 19:44 #710723
Fulmen
Participant
@fulmen
No, these are two completely different standards.
29 January 2024 at 20:21 #710728
Pete Rimmer
Participant
@peterimmer30576
Not a hope, no matter how big a hammer you use.
30 January 2024 at 20:03 #710881
Howard Lewis
Participant
@howardlewis46836
If you have a holder for the da collets make up square and hexagon blocks like Stevenson ER collet blocks, and nuts to match the collets.

If you don’t have a holder, ypou will need to make up the blocks, and closing nuts, to suit the da collets, but the thread can be any that suit your pupose (ER collets use a 1.5 mm pitch thread, usually the next size up from the collet range. Thus ER32 collets use a 40 x 1.5 mm thread.

The nuts will need to incorporate means of releasing the collet, in the same way that the eccentric lip does in the ER collet nuts.

Howard
30 January 2024 at 21:07 #710907
bernard towers
Participant
@bernardtowers37738
DA collets release themselves.
31 January 2024 at 12:32 #711005
Howard Lewis
Participant
@howardlewis46836
That makes life easier then!
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