Made of granite, free from deterioration or dimensional change over time,
minimal changes in dimension due to temperature changes. Meet GGG-P-463C.
Optional accessory: stand for granite surface plate (part no. 6902),
jack for granite surface plate (part no. 6903).

3M 94443, Speedglas G5-02 Inside Protection Plate with Integrated Airflow Deflector 08-0200-50, 2 ea/Case, 7100241573
3M 25774, Scotch-Brite Roloc Surface Conditioning Disc, TSM, 1-1/2 in x NH A MED, 7100014112, 200 per case 