7 in. Speed Square, Rafter / Carpenter Square Layout Tool with Etched Markings and Blue Book

The Swanson Speed Square first made by Swanson's founder in 1925. This innovative tool is not only a rafter square or carpenter square, but it also combines 5 tools into 1: a try square, a miter square, a protractor, a line scriber, and a saw guide. Our Speed Square is constructed of durable heavy-gauge aluminum alloy guaranteed to last. Includes markings for Swanson One-Number Method of rafter layout, and is packaged with the Swanson Blue Book of Rafter Length and Roof Construction. Look for the Diamond.