Characteristic: Made of high-quality aluminum alloy, the is electroplated, which has high wear resistance, resistance and oxidation resistance. Vertical/parallel measurement methods are optional, which can be used as woodworking measuring tools and squares, easy to operate, and can be used for measuring, correcting and marking. Common functions. It can be as fine as 1MM, which makes the scribing operation more accurate. The of the measuring ruler is anodized, which has high hardness and wear resistance, which helps to maintain the calibration accuracy. Suitable for DIY personnel, engineers, carpenters and decorators. It is a necessary measuring tool for workers in the wood industry. Suitable for circular materials, three-dimensional workpieces, square wood, pipes, etc. Describe Name: Woodworking Square Ruler Specification: 300mm Quantity: 1 piece Material: Aluminum alloy colour: red Package Contents: 1 x Woodworking square Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.