I'm sorry, I am a little confussed.... I thought the original post was for a chuck that would fit the headstock in the photo? What I have available are 4 jaw self centering scroll chucks. with 1.3875 through bore and reversable aluminum soft jaws bored to approx 1.400. They include "tommy bars" (chuck wrenches) and an allen wrench for the jaws. They have 1 9/16 x 32 inside threads. These will fit several popular types of cue lathes or can be use as a rear chuck on larger metal lathes. However you would need to machine a coupler or adaptor for use as a rear chuck. The TIR is approx. .003 or less as measured on a 1/2 inch drill rod approx 1 inch from the chuck.