Carpenters Square, Alum, 24 x 16 In/ TONGUE LENGTH: 16.000 INCHES BODY LENGTH: 24.000 INCHES NOMINAL DESIGN TYPE: ONE-PIECE BLADE EDGE SMALLEST GRADUATION UNIT: 1/8 INCH INSCRIBED REFERENCE TABLE: NEW LUMBER SCALE; DECIMAL EQUIVALENT TABLE; METRIC CONVERSION TABLE; FORMULA FOR SQUARING FOUNDATION; 30, 45 AND 60 DEG MARKINGS; VOLUME AND AREA FORMULAS; WOOD SCREW GAGE TABLE; NAIL SIZES (COMMON AND FINISH) QTY PER LB; DEPTH SCALE SPECIAL FEATURES: BUFFED FINISH MATERIAL: ALUMINUM