Angle Protractor Finder Two Arm Woodworkers Edge Ruler Angle Measure Tool Feature: 1.The new Woodworkers Edge Rule simplifies your life by wrapping around the edge of your stock and giving you an accurate scale on both sides. 2.Even the most skilled woodworker faces challenges in accurately angular placement on larger panel projects. You can try to extend the production line from a small protractor, but even a small error will make the production line extend farther, the greater the error. 3.Our latest precision ruler can provide unparalleled accuracy for your panel layout work. Just press the head to the desired angle, and then press the straight line. The head can be adjusted between 0° and 70°, and is firmly locked every 5° (plus 22-1 / 2° and 67-1 / 2°), so as to provide you with an accurate reference angle and length respectively It is 10 inches, 15 inches or 20 inches. 4.The secret to the T-Square is the series of precisely machined indexing holes and the spring-loaded, tight-tolerance indexing pin that meshes with them. The pin snaps into place giving you the confidence to know it is spot-on accurate. 5.Even when you’re not working with angles, this is a lay out tool you’ll reach for on almost every project. The blade features the same exclusive “saw-tooth” design scribing notches found in our new Stainless Steel Precision Woodworking Squares. There’s a notch every sixteenth-inch all along the blade. Just drop your pencil in the notch and slide the head along the edge of your stock for a perfectly parallel line. Package content: 1x angle protractor