I'm not necessarily new to woodworking, but new to lathes. I've borrowed a Rikon 70-100 lathe from a friend. It has a MT2 receiver in the tail stock, and currently has a live center on the tail stock. To remove the live center, I just rotate the hand wheel on the tail stock counter clockwise far enough to get the internal bar to push the live center out of the tail stock.
I just purchased a drill chuck with MT2 mount (https://www.amazon.com/gp/product/B004CVJC3E/ref=od_aui_detailpages00?ie=UTF8&psc=1) to use on this lathe.
When I mount the drill chuck in the tail stock, it sits farther out (from the opening in the tailstock) than the live center. Also, the removal process of rotating the hand wheel counter clockwise far enough to get the internal bar to push doesn't work because the end of the mount doesn't reach the internal mechanism.
My measurements I took on the two arbors are:
small large Drill Chuck: 0.59665 0.71750 (inches) Live Center 0.57860 0.70330 (inches) Spec 0.5720 0.7000
The lengths are the same.
From what I've found in online specs for MT2 tapers, the small end should be 0.5720" and the large end 0.7000". I think this means that the arbor I have was milled incorrectly, but is this "within tolerances"? I don't think so, but I'm not sure.
I think I'm going to return the drill chuck and get a new one, but I wanted to see if y'all thought first.
Lastly, Now that I look at it again, I think the Jacobs drill chuck side may not be right either as the drill chuck doesn't look like it's far enough in.
BTW, here's a pic of the drill chuck (this is after giving it a bit of force (a decent hand push from about 1" out) to get into the tail stock.
and for reference, here's the live center: