Shinwa Sokutei Curved Front and Back Scale Equivalent Red 1 Shaku 6 Sun 10561 Scale, Scale, Numbers, Silver,

Corner shape Corner thickness Front scale Long branch: Outer scale scale 6 Short branch: Outer scale 8 inch Back scale Long branch: Outer scale scale 6 Short branch: Outer scale 8 inch Perpendicularity 0.1mm or less per 100mm Length tolerance ±0.2mm