Sherline's drill chucks are made in the USA by Jacobs.
We supply a #0 Morse arbor for use in the tailstock for center drilling. They are available in 5/32", 1/4" and 3/8" sizes.
Runout is .003" or less. If runout of less than this amount is required, collets should be used to hole the drill rather than a chuck.
This larger drill chuck will hold drills from 1/32" (.8 mm) to 3/8" (9.5 mm) in diameter.
Because of its longer length and ability to hold longer 3/8" drills, it is normally recommended for use on the longer 4400-series lathes.
It comes with a #0 Morse arbor for use in the tailstock.
Also included is a #1 Morse arbor and drawbolt so the chuck can be used in the lathe or mill headstock as well.