Shinwa Sokutei Scale with Square Graduations On the JIS 10510 Carpenter's Back, Standard, Silver, 30cm,

Product size (mm): 320mm x 160mm x 2.6mm Product weight (g): 116g Package size (mm): 340mm x 180mm x 6mm Package weight (g): 120g specification: Accuracy: Squareness: 0.1mm or less per 100mm; Length tolerance: ±0.2mm or less. Front scale: Long branches: 30cm outer scale; Short branches: 15cm outer scale; Back scale: Long branches: Square outer scale, round inner scale; Short branches: 15cm outer scale Display: JIS mark, red numbers, Shape: Same thickness, Material: Stainless steel Precautions: *Do not use in places where there is a risk of contact with electricity.