Swanson Speed Series S0101 Pocket Square, Aluminum, 7-1/4 in L, 7 in W

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.