Make Spinner Bangles the easy way with Jeff Fulkerson’s Anti-Clastic Aluminum Bracelet Press. Use with a hydraulic press or manually with a wrench. Comes with a pair of disks, 1 pin (for the hydraulic press), 1 wrench and 1 bolt (for manual operation).
I do find this silversmith artisan frustrating, because he doesn’t provide detailed information. However, you can see this tool in action HERE