Durable and Wear-Resistant: The carpenter's line square measuring ruler adopts ABS material, Carpenter Ruler Square Measuring Ruler is wear-resistant, anti oxidation, durable, high measurement accuracy in use. Clear, accurate and easy-to-read metric engraving scale. Drill Fixed Hole Design: There are 9 different fixed hole designs, 3D Mitre Angle Measuring Template Tool can be applied to different drills according to different actual conditions. Parallel Line Drawing Function: There are several holes of the Woodworking Square Size Measure Ruler to draw parallel lines. You can place the appropriate holes to place the rows. Angle Finder: A 3D Mitre Angle Measuring Ruler with an angle scale can help you find a specific angle and mark it on the wooden material. Dovetail Model: The 3D angle ruler has two dovetail models, which can quickly build a standard dovetail shape on wooden material. The Carpenters Layout Ruler Gauge is widely used in making furniture, home DIY, woodworking, professional use, etc. Specification: Color: black Size: about 21.5 * 6.2 cm Package includes: 1pc*Carpenter Line Ruler Notes: Due to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size.