HHIP 4401-1597 6″ X 8″ X 2″ Granite Surface Plate, Grade B, 0 Ledge 6 x 8 x
HHIP 6 X 8 X 2″ Granite Surface Plate Grade B 0 Ledge The top surface of this plate is precision ground to achieve a high degree of flatness and the accuracy is +/-0001″. It is a Grade B (Grade 1) plate.