A lot of people these days are buying that vevor Chinese lathes with the 1.5" thru hole. We are now making screw on adapters to mount a rear chuck it accepts the chucks that Chris hightower and mid America laise sell the big board Chuck I also have some same adapters with no thread if you have a machine lathe in your shop you can board these out to fit whatever lathe you want The hightower or Mid-America Chuck will fit the other side it's threaded to fit it. Any questions feel free to message me we did one run of these and sold them already I'm in the process of finishing some more up I should have them done this coming week