The Woodworkers Edge Ruler is a highly functional stainless steel protractor designed for precision angle measuring in woodworking. This innovative tool wraps around the edge of your material, providing accurate scales on both sides for enhanced usability. Achieve exceptional accuracy with our precision ruler, tailored for your panel layout tasks. Simply position the head at your desired angle and press down on the straight line. The adjustable head allows for angles between 0° and 70°, locking securely every 5° to ensure precise reference measurements. The T-Square design features a series of meticulously machined indexing holes paired with a spring-loaded indexing pin that fits seamlessly into place. This design ensures you can trust the accuracy, making your woodworking tasks easier and more reliable. Available in three sizes—10 inches, 15 inches, and 20 inches—each blade is laser engraved with a clear inch scale in 1/32” increments. The graduations are maintained within a tolerance of ±.004" total accumulated error across the blade's length. The thin, satin-finish stainless steel not only offers a refined appearance but also enhances readability while minimizing parallax errors. This versatile layout tool is indispensable for nearly every project, even when angles are not involved. The blade includes exclusive “saw-tooth” design scribing notches, allowing you to effortlessly create perfectly parallel lines. Simply insert your pencil into the notch and slide the head along the edge of your stock. Specifications: - DIY Supplies: Plumbing - Model Number: QR037 - Material: Metal - Size Options: 10in, 15in, 20in Package includes: - 1 x Woodworkers Edge Rule. Find the right tool for any project – explore more from Wood Tools.