Shinwa Precision Square JIS Grade 2

Made in Japan, this high precision square is accurate, reliable and well made.Angle tolerance +/- (20 + ℓ / 10) μm where ℓ is the nominal length (mm)Annealed tool steel for maximum dimensional stability (not corrosion resistant)Manufactured in accordance with Japanese Industrial Standards (JIS) B7526 Grade 2Precision ground measurement surfacesPlease note: Unlike BS939 the Japanese engineering standard B7526 doesn’t call for a burr groove at the internal corner.Square sizeExternal Measurements (mm)Accuracy better than50mm50 x 40 x 107 microns (0.27 thou)75mm75 x 50 x 139.5 microns (0.37 thou)100mm100 x 70 x 15 12 microns (0.47 thou)150mm150 x 100 x 1917 microns (0.67 thou)200mm200 x 130 x 2222 microns (0.87 thou)250mm250 x 164 x 2227 microns (1.06 thou)300mm300 x 200 x 2532 microns (1.25 thou)

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SHPRSQ

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