- Size: 12″ X 12″
- Material: Aluminum Alloy
- Graduations: 1/4″
- Heavy Duty Aluminum Alloy Construction For Durability And Longevity
- Functions As A Framing Square, Try Square, Miter Square, Protractor, Line Scriber, Saw Guide, Stair Gauge And Out-Of-Square Corner Angle Finder
- Black Graduations For Easier Reading With Matte Finish To Prevent Glare
- Includes Swanson Blue Book Of Rafter Length. Roof Construction And Stairway Layout, Layout Bar And Hardware
- Blue Book Also Includes Tables, Formulas And Diagrams
