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Will_D:
Another mill related question:

Drawbar Standards:

Are there any standards for draw bars?

I would suspect that R8 has a standardised db thread

But what about MT 2 & MT3 - some tools are metric others imperial (Whitworth)

If I am lashing out over 1k on a new mill I want to know whats what.

Also before I accept delivery of the Mill I need to know if it comes apart easily!

Anyone have a parts diagram for the Warco WM16 or the Amadeal AMA25? If so please PM me

awemawson:
R8 is 7/16 UNF

MT come is all sorts of flavours

Arbalist:
Many Morse taper mills come with a 3/8 Whitworth draw bar. Mine did but I never use it as the supplier I got my collets from use M10 for MT2 and M12 for MT3. I just use M12 threaded rod with a nut on it. I've been meaning to make a self ejecting drawbar but haven't got round to it.

John Rudd:
The draw bar depends on whatever is used in the quill....
I have a 2 in boring head with an MT3 taper...it is tapped 3/8BSW...the ER32 collect chucks I have are all tapped M12....I also have a face mill that is MT3, that too is M12......

BaronJ:
Generally speaking, if the machine accessory, collet, boring head ect is metric then the drawbar will be metric threaded.  The same for imperial accessories, they will have imperial threaded drawbars.

HTH.

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