Description The precision woodworking triangles features engraved inch scale markings for extreme accuracy. The hypotenuse is engraved at 5increments, plus 22-1/2, help you quickly measure or mark an angle from 0 to 90 degrees. Carpenter square is one side of the base is 1/4 from the blade and the other is 3/8. Mark from the 1/4 side on both edges of 3/4 stock and you can lay out a perfectly centered mortise or tenon. To make accurate layout even easier, there are scribing guides milled every eighth-inch along the blade. Just drop the tip of your pencil in the right hole and slide the base along the edge for perfectly parallel lines. Woodworking square precision is machined from 4MM thick aluminum tooling plate, buffed to a satin finish and anodized for durability. You can use the set-up block of 1/8, 1/4, 1/2 and 3/4 for drill press or router bit depth of cut. The base wraps around your stock for a positive, accurate reference. That wrap-around feature also lets you mark the face and edge at the same time. Description: Ideal for every furniture and cabinetmaker. Whether you are laying out hand-cut joinery or marking up stock for machining, the squares offer convenience and accuracy in tools. Woodworking Triangles are great tools for quickly drawing perpendicular lines from an inside reference edge. Carpenter square is suitable for the measurement, also can be used as a protractor, woodworking compass, triangle square and frame square. The horizontal base is convenient for marking, smooth and practical. The combination angle is very light and handy, as it is made of 4 mm thick aluminium. Package: 1 x Multifunctional Carpenters Square 10 Inch Welcome to Copgge We are always online. If you have any questions or concerns, please do not hesitate to contact us, we are very ready to help you.