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.