Features 1、Accurate Manufacturing: The woodworking cross correction ruler allows you to accurately parallel mark every 1 mm (from 5 mm to 49 mm scale) using perforations. With accurate manufacturing capabilities, this ruler has an accurate scale. 2、Accurate Work: The woodworking L cross ruler helps you to draw crosses quickly and accurately, with different sizes and spacing of round holes. A wide range of different line drawing requirements can be met. 3、Easy to Use: You can use this woodworking scribing ruler to make wrap around marks. Find the right distance hole in the scribe, insert the pen tip into the hole and move the ruler to draw the desired line. 4、Rustproof and Durable: This L type measuring tool is made from reliable aluminium alloy for rust resistance and durability for a long life. 5、Layout Tool: This woodworking scribing and measuring tool is the tool you need to lay out and measure along the edges of boards or other workpieces. It allows you to position the pencil point accurately in the right place. Specification Item Type: Woodworking Cross Calibration Ruler Material: Aluminium alloy Model: T50 Package List 1 x Woodworking Cross Calibration Ruler