New mill Drawbar query

[sycle1]

I have a new mill drill and it has an imperial 1/2 inch 12TPI drawbar.
I have bought some MT3 taper tooling which has a M12 Metric thread of course it don't fit.
Is it common practice to change the drawbar out with a piece of threaded rod of the correct thread?
Being a brand new mill I am a bit adverse to pulling my mill apart to do this modification, won't it void my warranty?
I thought when buying it, a new mill it would work out of the box with currently made metric tooling. (silly me)
The funniest part is, it is a 2020 Chinese made mill for a German company and it has an Imperial threaded Drawbar. WTF?

 

[hman]

Very strange to hear that the drawbar for MT3 collets would be ½ x 12 TPI. Looking at the MT3 collets available from Little Machine Shop, they're threaded ⅜"-16.

Collet Set, 3MT, Set of 4 2023

Morse Taper Collets 2023 Set of four #3 Morse taper round collets; 3/8"-16 internal drawbar thread; Made of high grade tool steel; Hardened and ground...

littlemachineshop.com

Same with Shars

5/16" 3 Morse Taper Round Collet

www.shars.com

Also checked Arceuro Trade. They list both ⅜" Whit (Whitworth?) and M12 threads for MT3 collets.

Arc Euro Trade Ltd - Search Results

www.arceurotrade.co.uk

Offhand, I'd say you'd be well advised to get a new drawbar!

PS - Did the mill come with any collets or chucks that match the included drawbar?

 

[Cooter Brown]

I have a new mill drill and it has an imperial 1/2 inch 12TPI drawbar.
I have bought some MT3 taper tooling which has a M12 Metric thread of course it don't fit.
Is it common practice to change the drawbar out with a piece of threaded rod of the correct thread?
Being a brand new mill I am a bit adverse to pulling my mill apart to do this modification, won't it void my warranty?
I thought when buying it, a new mill it would work out of the box with currently made metric tooling. (silly me)
The funniest part is, it is a 2020 Chinese made mill for a German company and it has an Imperial threaded Drawbar. WTF?

In China the number 13 is super unlucky and the population is very superstitious, so we see this a lot with 1/2" 12tpi or 14tpi threads...... lol

 

[cathead]

A good project would be to make a new draw bar. I have made several over the years and not that hard to do.
I used some hex material at the top, a piece of cold roll for the shaft and used a cut off bolt (grade8) with the
appropriate threads gas welded to the end. I have reefed on it for years and it hasn't broken yet.

 

[addertooth]

I would add that Little Machine Shop (LMS) sells draw bars. You might call them, and ask if they have a draw bar which fits your model, which has a thread you prefer.

 

[sycle1]

Hooray!
The machine shop that sold me the machine is going to supply me with a proper M12 threaded drawbar to fit the machine spec.
Thankfully they saw the error and are going to rectify it. Cheers

 

[hman]

Fantastic! Great to hear that you're dealing with some good folks.