The Oneway Talon Chuck is an excellent choice for smaller lathes.  The threaded insert is included!  Includes the heavy duty worm type screw for chucking into a drilled hole. 
One of the most compact and precise chucks on the market.  If you have a mini or midi type lathe or just intend to do smaller work, this is the chuck.  It weighs only 3.5 lbs. and is 3.5" in diameter.  The #2 Jaws included with the chuck have a compressing range of 1 5/8" to 2 7/8".    Several features make this an excellent chuck:  chuck key to open/close the jaws  (rather than two bars), a threaded insert that allows easy change from one lathe of a different thread size to another and the serrated jaws  (give outstanding holding power).    Unlike some Talon Chucks priced in catalogues, the threaded insert for your lathe is included in the price.   Be sure to choose the correct thread for your machine.  If you don't see it listed or you are not sure of the thread, please contact Alan  (alan@alanlacer.com).  Also,  we do carry the full line of optional jaws for this chuck, so contact us for options and prices.