1DURABLE MATERIALS: The woodworking square ruler is made of durable aluminum alloy material with a CNC anodized surface for effective corrosion protection 2EASY TO USE: The 3D aluminum alloy woodworking square ruler provide clear and accurate laser etched marks, making measurements and marks easy to read 3STABLE AND ACCURATE: The tight sliding fit ensure that the pin does not fall out of the hole, providing stability and accuracy. When the pin is firmly in place, can still be easily removed by hand so that can be repositioned at a different angle so that accurate angles can be easily drawn 4MULTIPLE ANGLES: The woodworking square features a 6 hole design and can draw preset angles of 22.5, 30, 45 or 50, 60, 67.5, and 10, as well as corresponding angle pin holes, making it easy to draw angles accurately 5PORTABLE AND WIDELY APPLICABLE: Miter triangle ruler come with a compact size fit in your pocket. Ideal for DIY enthusiasts, engineers, carpenters, and decorators, this multi angle measuring ruler is a must have tool for woodworking