General description The Angle Protractor is a versatile carpentry tool designed to simplify your woodworking projects. It wraps around the edge of materials, providing precise measurements on both sides. This T-shaped square features precision machined indexing holes and spring-loaded indexing pins that ensure accurate positioning, making it an essential tool for both novice and experienced woodworkers. Technical specifications Material: Metal Color: Silver Size: 20 inches Measuring range: Head adjustable from 0° to 70° with firm locking every 5° (plus 22-1/2° and 67-1/2°) Notches every sixteen inches across the blade Usage This precision ruler is ideal for panel layout work, allowing you to create accurate angles and parallel lines. Simply press the head to the desired angle and slide it along the edge of your material to mark precise measurements. It can be used in a variety of projects, even when angles are not required. Other information Package includes: 1 x woodworking edge ruler