Homeowner's Aluminum Carpenter SquareHigh tempered aluminum for maximum durability. Useful tables and information stamped into square, such as: new lumber scale, decimal equivalent table, metric conversion table, formula for squaring a foundation, 45°, 60°, 30° angle markings, volume and area formulas, wood screw gauge table, nail sizes. Deep, long-wearing graduations for easy reading. Protective lacquered coating resists corrosion. Beam Length: 16 in; Beam Width: 1 1/2 in; Blade Length: 24 in; Blade Width: 2 in; Material: Aluminum; Measuring System: Inch; Number of Scales: 1; Quantity: 6 per box; Type: Framing Square; Weight: 1 lb.