Gibraltar 93219996 Adapter Back Plate for 12 Inch Diameter Lathe Chucks(T) $350.0 MPN 93219996 Brand Gibraltar condition New – Open box Gibraltar 93219996 Adapter Back Plate for 12 Inch Diameter Lathe ChucksMSC Part #: 93219996 Manufacturer: Gibraltar Nominal Chuck Size: 12 Spindle Nose Type: A Series Mount: A1/A2-8 Chuck Diameter Compatibility (Inch) : 12 Material: Steel