12" - 315mm Chuck.

  One  Set of Soft Jaws for 315mm / 12"  Pratt Burnerd Scroll Chuck
  Standard / Griptru Chuck.  (Pre Metric)
  
 Minimum machined but have had a Fixture Fabricated to them, and removed.
  Look very scruffy, but should machine easy to suit. 
  Very sensibly priced due to this
  Please check dimensions in pictures.