[High Quality] Metal carpenter's square is made of high quality aluminum alloy, with excellent workmanship, high hardness and rust resistance; durable, moderate toughness, no deformation and more durable for falling. The coating is plump and uniform, flat and smooth, which is superior to other coating processes. Clear Scale] 90 Degree Metric Metal Square high-precision production, clear and precise stamping scale, high precision; straight lines and wavy lines can be drawn, which are accurate and not easy to wear. There are metric and inch sizes, laser marking technology, can be used very well for angle measurement, the ruler table is exquisite and smooth, and it feels comfortable. [Horizontal Base] Aluminum alloy measuring ruler has one 90° angle and two 45° angles, a right angle base, easy to fix, can help you measure the size well; easy to draw lines, smooth use. Conversion table on the back, common rafter conversion, light and strong, more convenient for your work. [Wide Range of