Chuck Adapter, 1-1/2"-8 Thread 4" Diameter

- Cast iron lathe chuck backplate adapter fits lathes with 1-1/2"-8 spindle nose thread
- Adapter is 4" (100 mm) in diameter and has no chuck mounting holes
- For all 3" chucks and 4" 4-jaw chucks
- Includes instructions for final turning of the registration diameter to ensure concentricity
See LittleMachineShop.com PN 1918 for a 4" diameter adapter pre-drilled for a 3-jaw chuck.
*NOTE* These adapters require machining on the lathe on which they will be used.
Instructions are included for final turning of the registration diameter on your lathe to ensure perfect concentricity.

WOODWORKERS: Our threaded adapters are not suitable for use on wood turning lathes. Please do not purchase them for this application. These adapters require machining on the lathe on which they will be used, and this is impossible on a wood lathe.
Compatibility
This product works with these LittleMachineShop.com products: