Carpenter's Square, Joiner's Square 12 Inch/300mm, 45 90 Degree Angle Ruler Sliding Ruler, Carpenter's Square Set Measuring Tool for Woodworking and Marking

【Durable Metal Material】--Made of aluminum alloy, this carpenter's square ruler is thick (1.3 mm) with an accuracy of 0.2 mm.
【Magnetic Design】--To ensure the ruler stays in place during use, strong magnetic blocks have been added, allowing the combination square to mark and draw stably.
【Multiple Uses】--This set of engineer's rulers can not only be used for drawing horizontal lines, but also features a 45° angled plane, ideal for 45° and 90° manual woodworking applications. With centimeter markings, there is a hole every 1 cm, enabling precise horizontal line drawing. Time-saving engraving and measuring switch
【Hook Design】--After use, the hanging hole solves your storage problems, economical and practical
【Wide Application】--Professional and home use. Suitable for woodworking, DIY, crafts, etc. It's an ideal measuring and writing tool for woodworkers