The Swanson 7″ Speed Square is actually five tools in one: a try square, a miter square, a protractor, a line scriber, and a saw guide. The Speed Square is constructed of durable heavy-gauge aluminum alloy. Includes markings for Swanson’s One-Number MethodSM of rafter layout, and is packaged with the Swanson Blue Book of Rafter Length and Roof Construction. Look for the Diamond.








