The "Big 12" is a 12" speed square made by Swanson Tool Co. The square is seven tools in one: a framing square, try square, miter square, protractor, saw guide, stair gauge & out-of-square corner angle finder. It’s constructed of heavy-gauge aluminum alloy & includes the Layout Bar for use in determining out-of-square corners. Also included are the Swanson Blue Book for roof & stairway layout & Layout Bar with hardware. Great for deck framing and stairway building. Made in USA.
Product Overall Size Square Thickness Model # Swanson "Big 12" Speed Square With Layout Bar ~ 12" Size 12-1/2" x 12-1/2"
For California Residents:
WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood