1、WIDE APPLICATION: This combination ruler is suitable for measuring lengths, center points, standard 90 degree and 45 degree angles, etc. 2、MEASURING RANGE: The angle measuring range of this ruler is 0-180 degree, with a measurement accuracy of 0.01, a total range of 300mm. 3、DURABLE MATERIAL: The angle ruler is made of stainless steel and plastic, corrosion resistance, wear resistance, and has a long service life. 4、ACCURATE SCALES: With fine workmanship, this combination gauge has clear and accurate scales, metric and imperial, ensuring reliable measuring. 5、MULTIPLE USAGES: This combination ruler can also be used as an outside try square for depth gauges and scribers, with strong practicality. Item Type: Combination Gauge Material: Stainless Steel, Plastic Range: Approx. 300mm / 11.8in Angle: 0-180° System: Metric and Imperial 1 x Combination Gauge