This metal triangle ruler is made of aluminum alloy material, with high hardness good toughness and lightweight. The surface is anodized to form a dense protective film, effectively isolating corrosive factors such as moisture, wood chips, oil dirt, etc. The surface is smooth and free of burrs. When in contact with wood, board and other workpieces, it will not scratch the surface of the workpiece, ensuring the beauty of the processed product.This square carpenter tool adopts laser engraving scale technology, with fine and clear scale lines, accurate readings, and strict calibration for every millimeter and inch scale, with an error controlled within ± 0.1 mm. The accuracy of marking and measurement is high.
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