Completely stress free after millions of years of natural stress relieving, high rigidity, corrosion free and non-magnetic makes granite suitable for inspection purposes and anywhere an accurate stable datum is required.
Granite surface tables are manufactured to BS817:1988 and are finished to the exacting tolerances required.
Every table is supplied complete with a UKAS calibration certificate and a box section frame with adjusting supports. Tapped inserts and covers can also be supplied as extra.
Surface plates are similar to the tables in both grade and finish and provide a highly accurate datum surface for smaller inspection departments. Each plate is supplied with NAMAS certificates but without a support frame. Tapped inserts and covers can be supplied extra. Granite tables are available from Exact Metrology.