Made in the USA by Advanced Tooling Systems Workholding. This is a 5C Collet Chuck CNC Lathe Threaded Nosepiece w/ A2-6 Mount. This is an older style ATS nosepiece and doesn't have the usual markings, see pictures. Spindle Nose Threads: 2-3/16-10 TPI. Drawtube Adapter Threads: M60 x P2.0.
Comes exactly as shown in pictures.