Features 1、It is made of super hard 7075 aluminum alloy, which is much higher in hardness than 6061. Wear resistant and corrosion resistant. 2、Used for marking 3D boards, and can draw 90° angle, balance line, T shape line and hinge hole position line. 3、Lines can be drawn on both sides, the minimum center distance of each hole is about 1mm / 0.04in. 4、Clear scale for easy positioning of angle. Parallel lines and vertical lines are precise and neat. 5、Ideal for carpentry applications in framing, roofing, stair work, in making layouts and patterns. Specification Item Type: Framing Ruler Material: 7075 Aluminum Alloy Model: T-200 Color: Red Ruler Thickness: Approx. 3mm / 0.12in Purpose: Woodworking Marking Package List 1 x Framing Ruler