Swanson Tool Co Speed Square with Plain Markings & Swanson Blue Book, Model T0101

Only Swanson rafter squares get to call themselves Speed Squares! Used by professionals and DIYers for nearly 100 years, this innovative tool combines 5 tools into 1, giving you a Try Square, Miter Square, Saw Guide, Line Scriber, and Protractor. The Speed® Square is die-cast for durability and accuracy, and made of heavy-gauge aerospace aluminum alloy, so you know it is built to last. The Speed® Square includes the Swanson® Blue Book of Rafter Length and Roof Construction and also features markings for using the Swanson® One-Number® Method of rafter layout. The Swanson® Speed® Square is our most popular product and remains the most trusted square of its kind.  Look for the Diamond® cutout for genuine Swanson® products.