Shinwa Sokutei Measuring Miter Square with Wide Base Width 62189 (Shinwa Instruments) Base, 40mm,

Product dimensions (mm): 170mm x 100mm x 40mm Product weight (g): 334g Package dimensions (mm): 115mm x 230mm x 40mm Package weight (g): 336g specification: 90° accuracy: less than 0.1mm per 100mm; 45° accuracy: less than 0.2mm per 100mm; Material: Body: Stainless steel Precautions: *Do not subject the device to strong impacts or other forceful movements.