Item Surface Plate, Material Granite, Application Grade Inspection, Color Pink, Edge Style Two Ledges, Flatness 0.000200 in/0.0050 mm, Grade A, Length 24 in, Surface Size 24 in x 36 in; 600 mm x 900 mm, Thickness 6 in, Case Type Crate, Flatness Unilateral Tolerance (In.) 0.000200, Flatness Unilateral Tolerance (mm) 0.0050, Includes Case No, Standards ASME B89.3.7 2013, GGG-P-463c, Surface Size (In.) 24 in x 36 in, Surface Size (mm) 600 mm x 900 mm, Weight (Kilograms.) 209 kg, 36 in