The Collaborative International Dictionary of English v.0.48:

Fuller \Full"er\, n. [From Full, a.] (Blacksmith's Work)
   A die; a half-round set hammer, used for forming grooves and
   spreading iron; -- called also a creaser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Creaser \Creas"er\ (kr?s"?r), n.
   1. A tool, or a sewing-machine attachment, for making lines
      or creases on leather or cloth, as guides to sew by.
      [1913 Webster]

   2. A tool for making creases or beads, as in sheet iron, or
      for rounding small tubes.
      [1913 Webster]

   3. (Bookbinding) A tool for making the band impression
      distinct on the back. --Knight.
      [1913 Webster]