X 22 X 2 Black Granite Surface Plate from CMM 13640

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  For sale is a 36" X 22" X 2" Black Granite Surface Plate, removed from
  a Coordinate Measuring Machine.  (24) 5/16" X 18 TPI Drilled and
  tapped holes on one side of plate.  6" Distance between holes (center-
  to-center).  Drilled and tapped holes are in cylindrical steel
  inserts, cemented into the plate.  Drilled and tapped mounting holes
  in opposite side of plate.  NOTE: The condition of this granite plate
  is very good, with no gouges or serious scratches in the surface.