The Swanson® Speed® square was first developed by company founder Albert Swanson® in 1925. This innovative tool combines five tools in one like a try square, miter square, saw guide, line scriber and protractor. 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.
