Features 1. Aluminum alloy material: The woodworking square knife is made of precision and durable aluminum alloy, with high hardness, not easy to break, and good oxidation and rust resistance. This material is very thick and has a good hand feel 2. Multi functional woodworking tools: The rafter tool can be used to measure angles and can also serve as a saw guide for cutting. The protractor can be used in conjunction with a square saw for cross or diagonal cutting. The rail ruler can measure or mark angles from 0 to 90 degrees very quickly, and can also be used as a saw guide for cutting at 45 and 90 3. Adjustable: Measure the angle and spacing of the rafter ruler, adjust it to the red angle rod and tighten the nut for precise positioning, which is very suitable for repeated cutting. The unit of measurement conversion table is printed on the scale and easy to use 4. Precise Scale: The Carpenter Square has a deeply etched scale that is easy to read and will not wear out over time. The triangular ruler undergoes professional calibration before production 5. Multifunctional: The adjustable woodworking square ruler can be used as a protractor, diagonal joint, marking saw rail, woodworking angle ruler, and ruler. Very suitable for measuring angles, adjusting saws, drawing circles, sawing guides, leveling, marking plates, etc Explain Easy to use: This woodworking square ruler can be adjusted for precise positioning, which is very useful for repeated cutting, and comes with an easy-to-use measurement unit conversion diagram. Sturdy structure: The square rafters are made of CNC processed aluminum alloy, which is hard, rust proof, and durable. Specification Product Name: Woodworking Square Knife Material: Aluminum alloy Size: 7.5 x 7.5 x 10 inches Color: Black Notes: There may be slight differences between the actual color of the image and the product. We will do our best to show you the exact color. 2. Please allow for slight dimensional differences caused by manual measurements. Package Include: 1 x aluminum alloy square ruler