S0101 SPEED SQUARE The Swanson Speed Square was first developed by company founder Albert Swanson in 1925. This innovative tool combines 5 tools into 1. The Speed Square is die-cast for durability and accuracy. Made of heavy-gauge aerospace aluminum alloy, it is built to last. Black-filled gradations stand out against a matte finish for easy reading. 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. The Five Tools Built In Try Square Miter Square Protractor Line Scriber Saw Guide Features Includes pocket-sized Swanson® Blue Book 1/4 in. spaced scribing notches and the Diamond Heavy-gauge billet aluminum alloy construction Gradations included for marking common, hip, valley, and jack rafters.
