Confused with spindle specs

[Tozguy]

Good to hear Peter. Now you are off to the races!
What do you have planned for the MT3 stub arbor?

 

[brino]

It looks great, and you cannot beat the price!
-brino

 

[peter.van.haren]

Good to hear Peter. Now you are off to the races!
What do you have planned for the MT3 stub arbor?

I bought a few blank "stub" arbors. Seemed like a good idea at the time.....
One will be for a center drill holder, the other hopefully a small live center. Both at tail stock.
Other one, don't know yet. Suggestions?

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[peter.van.haren]

It looks great, and you cannot beat the price!
-brino

Was a surprise actually. I asked if he could find one and he showed me that crappy one pictured earlier. Next thing that happened was a surprise package at the door! The finish quality is flawless, although not sure about runout...

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[Tozguy]

I bought a few blank "stub" arbors. Seemed like a good idea at the time.....
One will be for a center drill holder, the other hopefully a small live center. Both at tail stock.
Other one, don't know yet. Suggestions?

Sent from my SM-N960F using Tapatalk

If one has a drawbar thread instead of a tang you could make an ER chuck with one. Calculate the maximum ER size you could use. Then buy the nut and collets. Get the nut before cutting threads on the chuck.
Then you would not need a separate centre drill holder.