Lathe Spindle Adapter for PSI & Similar Lathes to chucks or any lathe accessories. This adapter has a 5/8" diameter Spindle to fit your PSI lathe Headstock or machine spindle The other end is male threaded M14 x 1 for lathe chucks & accessories. Supplied with various options of small chucks of 65 mm diameter 3 jaw self centering chuck.