Buttons close in concentrically, making it easy to center your project.
Description
12 Inch Self-Centering with 1 Inch-8TPI Thread Longworth Wood Lathe Chuck.
Capacity in expansion mode: 4'' to 11-4/5'' in diameter.
Capacity in compression mode: 2-3/5'' to 9-4/5'' in diameter.
Threads Directly Onto Lathe Spindle 1x8 Faceplate Included.
Buttons close in concentrically, making it easy to center your project.