Swanson AD124 48" Adjustable Aluminum Drywall Square
• Fully adjustable head
• Heavy duty 1/4" thick blade
• Thermo-bonded gradations
This adjustable drywall square stores easily thanks to its fully adjustable head, while high-grade aluminum construction means it resists utility knife nicks and scratches. This unique tool allows the user to easily make angle marks and transfer & match angles, which are permanently impressed at 30°, 45°, 60°, and 75°, on plywood or drywall.