Insize Granite Surface Plate,Gray,Type 6-Face 6900-A12

Item Surface Plate, Long Form Calibration Certificate Yes, Material Granite, Application Grade Inspection, Color Gray, Edge Style Flat, Flatness 0.00013 in/0.0033 mm, Grade A, Length 18 in, Surface Size 18 in x 24 in; 450 mm x 600 mm, Thickness 3 in, Flatness Unilateral Tolerance (In.) 0.00012, Flatness Unilateral Tolerance (mm) 0.0030, Standards GGG-P-463c, Surface Size (In.) 18 in x 24 in, Surface Size (mm) 457 mm x 609 mm, Weight (Kilograms.) 82 kg, 24 in, Weight (Lbs.) 64 lb