Aluminum Faceplates are screwed onto bowl blanks to hold them securely in place on the lathe.
Aluminum - will never rust
Set screws - run lathe in reverse (sanding only)
Lasered hub - quickly identify thread size
Larger screw holes - Larger screws = holding power
Shorter overall length - allows work to stay close to headstock bearings for less vibrations
5/16" Spanner hold - allows for easy removal
CNC machined - precision quality