Item Type: Woodworking Straight Angle Ruler Material: Aluminium Alloy Thickness: Approx. 3mm/0.12in 1、Multi Uses: You can use straightedge measuring rule to draw a variety of corner readings, balance lines, vertical lines and equidistant center points. 2、Other Purpose: Woodworkers edge ruler can also be used to draw slopes, sloped roof rafters and the ends of open beaks, dependable to use. 3、Adjustable Knob: L square angle ruler also has an adjustable positioning knob, corresponding to all intersections of the drawn line with the edge being equidistant. 4、Premium Material: Multi angle measuring rule is made of high quality aluminum alloy, anti glare, wear resistant and durable, good oxidation resistance, not easy to break. 5、Practical Tool for Woodworker: Perfect tool for woodworker, craftsmen, builders alike etc, this auxiliary marking ruler is a must have for any toolbox. 1 x Angle Ruler