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Help identifying collets

3C? Please advise

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Luke Mitchell29/05/2020 22:38:54
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39 forum posts
21 photos

Hi all,

Along with my lathe (in the obligatory box of bits) there came 3 small collets that I've not been able to identify. They look to me like 5C but are much smaller. Perhaps they are 3C? Does anyone know?

There is no collet chuck and they are somewhat useless to me at the moment. I suspect I will go down the ER32/40 route when I eventually need collets. Still, it would be good to know what these are so that I can move them on or acquire the equipment to use them appropriately.

Kind regards,

Luke

Bill Davies 229/05/2020 23:00:59
188 forum posts
11 photos

I think they are 3C collets. The CC indicates that they were made by Crawford, and the 327 I think signifies 3C.

Crawford Collets is now part of the 600 Group, a long established group of British machine tool manufacturers.

Bill

Martin Connelly29/05/2020 23:06:34
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1365 forum posts
159 photos

This is from an old Crawfords catalogue. The last three columns are capacities for round, hex & square.

crawford collets 3c.jpg

Martin C

Also listed for Jones & Shipman CDBX1

Edited By Martin Connelly on 29/05/2020 23:13:53

Luke Mitchell29/05/2020 23:08:37
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39 forum posts
21 photos

Thanks both, very helpful!

Clive Brown 130/05/2020 09:08:06
426 forum posts
12 photos

This collet is the type supplied for Boxford A, B, & C lathes

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