Swanson Tool Co 12" Aluminum Speed Square with Layout Bar & Blue Book, Model S0107

Finish numerous projects with efficiency and precision using the Swanson Big 12 Speed Square with Layout Bar. This is a 12" version of the Swanson speed square - with added features for building stairs. This innovative tool combines seven tools in one. It works as a try square, a miter square, a saw guide, a line scriber and a protractor. There's even a function to plan stair layouts and locate out-of-square corner angles. The Big 12 speed square is die-cast for accuracy and solid aluminum for durability. Black-filled gradations stand out against a matte finish providing easy reading and marking. Simplify big tasks using the Swanson one-number method of rafter layout - you don't even need a calculator. This model includes the Swanson Blue Book for roof and stairway layout as well as the layout bar for use in determining out-of-square corners when building stairways. Make all your construction tasks easier with this Speed Square: mark angles, make 90 degree cuts, scribe a line, extend a straight line, find roof angles, determine roof pitch - and of course, check for square. Ships new in package.