Aluminum Carpenter Squares, 16 in x 24 in, 1/8 in @ 1 in, Aluminum

High 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 (common and finish), quantity per pound and depth scale|Deep, long-wearing graduations for easy reading|Protective lacquered coating resists corrosion|