granite surface plate / black granite
107 G series
granite, black granite
Mahr Metrology 107 G is a rust-proof surface plate that highly standardized in construction due to its high density structure.
It is magnetic-resistant and non-conductive, suitable for layout work, measuring tasks, touching up, and lapping precision parts. The surface plate has a satin matte texture to prevent glares, providing strength that falls under 6-7 in the Mohs hardness scale.