Surface plates or engineering stones are used as the baseline, for precision measurements. One primary surface of the finished surface plate is extremely flat with micron accuracy. Since Granite is inherently stable, non-magnetic, rust resistant, anti-corrosive etc., the applications of granites in the surface plate industry are numerous. Gem Granites is the pioneer in India, for Granite Surface Plates.

The company is in the process of setting up a $15million facility dedicated to the manufacture of Granite Surface Plates.