Swanson Tool Co 48" Adjustable Aluminum Drywall Square, Model AD124

FEATURES: Fully adjustable head allows multiple angle cuts DURABLE MATERIAL: Heavy-duty anodized aluminum alloy frame resists utility knife nicks and scratches ACCURACY: Black thermo-bonded gradations improve readability and precision PORTABLE: Collapses fully for easy portability and storage ANGLED MEASUREMENTS: Large, adjustable tensioning knob locks securely to allow angled measurements (30º, 45º, 60º and 75º angle guides save time when measuring)