Thank you Trubleshooter! The dry air is no problem. I don't think this spindle is set up for coolant flow. It will never see the level of work yours currently does. When I get it set up, I'll definitely keep an eye on the heat level.

Jon, the spindle does have the ability to carry a drawbar. The 75TG collets are single angle, and I think I can create fixed tooling by first, creating a female threaded collar (with drive dog bars) to replace the nut... that'll be a permanent attachment. Then, I'll create some steel carriers that mimic the body angle of the 75TG collets.

Fixed tooling is nice, but I'll live with collet only, as Flashcut, my current system, is very close to releasing tool-length sensing which allows Z offset setting during a tool swap.

A couple of years ago, when I was planning this system, I looked closely at this type of unit and rejected it due to cost, but eBay came through once again.