www.sometcz.com Stands / Bench centers / Surface plates Flatness tolerances according DIN 876 Class Flatness t1 (µm) L = length t1 C06.000.Somet.20240422 00 2 + L / 500 in mm 0 4 + L / 250 1 10 + L / 100 L 2 20 + L / 50 3 40 + L / 25 158