WEN LA4444 4-Inch 4-Jaw Self-Centering Chuck Set with 1-Inch x 8TPI Thread
Remember when you had maximum versatility with your wood lathe? Take on projects of all shapes and sizes with the WEN 4-Inch 4-Jaw Self-Centering Keyed Chuck. This versatile chuck features dovetailed jaws, allowing you to grip the outside of stock between 1.6 to 2.8 inches in size, or to hold internal pilot holes ranging from 2 to 3.2 inches in diameter. If that's not enough, you can also install the included screw chuck depending on the task at hand. The 1” x 8TPI mounting thread fits a wide variety of wood lathes, including the WEN 3420, 3420T, 3421, 3424, 3424T, 34018, 3427, 34018, 34027 and 34034. NOTE: max recommended workpiece size for 3420, 3420T, and 3421 is 4 inches.

PSI Woodworking Products TM32 1/2-Inch Drill Chuck with #2 Morse Taper Arbor (1/2" 2MT)
#2 Morse taper mount for Delta, Jet, PSI, and other Midi lathe headstocks and tailstocks. A 1/2-Inch diameter 3-jaw mechanism can be used for securing small turnings or pen mandrels at the headstock, or a drill bit in the tailstock. Accepts a 1/4-20" draw bolt (not supplied) for safety. Will hold drill bits up to 1/2-Inch in diameter. Drill chuck mounted in the #2 MT can be used in either the headstock or tailstock. Tightens with a chuck key(included) for excellent grip. Removed easily with a knock-out bar.