Carpenters ruler 90 degree 45 degree Carpenters measuring ruler boardproduct description:Rafters are an indispensable tool for carpenters. Whether you are designing a beam or you only need a quick 45 or 90 angle measurement, the speed side is committed to providing the most refined, accurate and user-friendly design method. Our beam box embodies our commitment and tradition to provide high-quality measurement solutions, while our other beam boxes provide a full range of solutions to meet any measurement needs.High quality-made of precise and durable CNC machined aluminum alloy, light weight and comfortable. Good oxidation resistance, not easy to break, each ruler is thick, corrosion resistant, and high hardness.[Permanent scale]:etching permanent scale is used to provide you with the most standard accuracy you need. The angle conversion table facilitates the use of correct numbers. Smooth grinding[Multi-function]: Suitable for measurement, can be used as a protractor, woodworking compass, square box. The horizontal base is convenient for marking, smooth and practical.Convenient and practical design: humanized design, easy to hang and store when not in use. The edges and corners of each are polished by a special process to make them smooth and not hurt your hands.Products include:1x Measuring tool angle ruler