About this item: Steel carpenter’s square with metric and English measurements and a variety of tables and conversions. Information includes lumber scale, decimal equivalent, and metric conversion table; formula for squaring foundations; 45-, 60-, and 30-degree angle markings. Tempered steel designed for durability; clear finish protective coating resists rust. Easy-to-read, long-lasting, 1/8-inch embossed graduations and figures. Body: 24- by 2-inch; Tongue: 16- by 1-1/2-inch; backed by lifetime limited warranty.