The new woodworking edge ruler simplifies your life by wrapping around the edge of the stock and providing accurate proportions on both sides. The secret to the T-square is a series of precisely machined indexing holes and close-tolerance spring-loaded indexing pins engaged with it. The pin snaps into place, giving you the assurance that it is precisely positioned. Even the most experienced woodworker faces the challenge of accurately placing the angle on a large panel project. You can try extending the production line from a small protractor, but even a small error will cause the production line to extend further, the greater the error. Our latest precision ruler can provide unparalleled accuracy for your panel layout work. Simply press the head to the desired angle, then press the straight line. The head can be adjusted from 0 to 70 and is firmly locked every 5 (plus 22-1/2 and 67-1/2) to provide you with accurate reference angles and lengths, respectively. It measures 10 inches, 15 inches, or 20 inches. Even if you're not using angles, this is a layout tool that can be used for almost any project. The blade has the same exclusive serration feature. Design notches are found in our new product. Precision stainless steel woodworking square. There is a notch every sixteen inches across the entire blade. Simply place the pencil in the notch and slide the head along the edge of the stock to achieve a perfect parallel line. Product Description Features: The new woodworking edge ruler simplifies your life by wrapping the edge of the stock and providing accurate proportions on both sides. The secret of the T-shaped square is a series of precisely machined index holes and close-tolerance spring-loaded index pins engaged with it. Our latest precision ruler can provide unparalleled accuracy for your panel layout work. Simply press the head to the desired angle, then press the straight line. The head can be adjusted from 0 to 70 and is firmly locked every 5 (plus 22-1/2 and 67-1/2) to provide you with accurate reference angles and lengths, respectively. It measures 10 inches, 15 inches, or 20 inches. Even if you don't use angles, this is a layout tool that can be used in almost any project. Descriptions: Material: Metal Color: Silver Size: 20 inches Measuring Range: The head can be adjusted between 0 and 70 Package Including 1 * Woodworking Edge Ruler