This is a threaded insert / adapter for Hurricane Turning Tools 4 jaw woodturning scroll chucks. These adapters will fit the HTC100 4" Chuck and the massive HTC125 5" Chuck. If you have both the HTC100 and HTC125, you can interchange these adapters between them all. Your chuck purchase usually comes with one adapter. This listing is for an additional adapter if you need one for another lathe.
The 1 1/4" x 8 TPI insert should fit the following lathes:
- Powermatic Models 3520, 3520A, 3520B, 4224, 4224A
- Robust Lathe
- Many Others - Please let us know what you have and we will add it to this list
This 1 1/4" x 8 TPI insert does include a grub screw for reverse turning.