Surface Plate, Granite, 12" x 9" x 3" 

Granite surface plate used as a horizontal reference plane for tooling setup, precision inspection and layout.

These surface plates are checked with an auto-collimator for overall accuracy. All points on the surface are between two parallel planes 0.0002" apart.

The dimensions of this plate are 9" (w) x 12" (L) x 3" (D)