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

VERSATILE ADJUSTABLE HEAD: This 48-inch drywall T-square features a fully adjustable head for marking and making precise angle cuts on sheetrock, plywood, and gypsum board. HEAVY-DUTY CONSTRUCTION: Built with a professional-grade anodized aluminum alloy frame, this rugged layout tool is designed to resist utility knife nicks and scratches for long-lasting durability on the job site. HIGH-VISIBILITY ACCURACY: Features black thermo-bonded gradations for maximum readability; the precision-etched markings ensure accurate measurements for woodworking, framing, and home improvement projects. COMPACT & PORTABLE: The innovative design collapses fully, making it the perfect portable measuring tool to fit into tight storage spaces or transport easily between work locations. SECURE ANGLE LOCKING: A large, high-torque tensioning knob locks the blade securely at 30, 45, 60, and 75 angles, serving as a reliable angle guide to save time during complex layout tasks.