1. Edge Ruler for Woodworkers: Our woodworker ruler wraps around the edge of the panel, featuring precise scales on both sides. Made of steel, the ruler and angle measuring tool are laser engraved for clear readability and ease of use. 2. The Ultimate Layout Tool for Angled Panel Projects: Simply press the head to your desired angle, then align the straight line. The head adjusts from 0° to 70°, with screws locking securely every 5° (including 22 1/2° and 67 1/2°) to ensure accurate reference angles and exact lengths. 3. Fixed Screw Design: The movable head screws allow for quick adjustments—just press the straight line to set a precise angle for panel layout work on our 10 inch ruler. Even seasoned woodworkers encounter challenges with larger panels. Attempting to extend lines from a small protractor can lead to errors that compound over distance. 4. T SQUARE DESIGN: The T square's precision lies in its finely machined indexing holes and spring loaded indexing pin, which locks tightly into place, guaranteeing exceptional accuracy.