Niigata Seiki SK Made in Japan Silver Curved Yellow Quick Step Same Graduations on Both Same Ruler, Dragon, Scale, Sides, Thickness, 30cm, SDD-30CKD

Country of Origin: Japan Corners: same thickness Length (end) x width x thickness (mm): 320 (160) x 15 x 1.3 Front scale (cm): Length: Outside 30, Inside 30 (outside standard), Side: Outside 15, Inside 15 (outside standard) Back scale (cm): Length: Outside 30, Inside 30 (outside standard), Side: Outside 15, Inside 15 (outside standard) Length tolerance (mm): ±0.2 per 300 mm, Squareness (mm): 0.1 or less per 100 mm (scale side)