The Big 12® is seven tools in one: a framing square, try square, miter square, protractor, saw guide, stair gauge and out-of-square corner angle finder.
- It's constructed of heavy-gauge aluminum alloy and includes the Layout Bar™ for use in determining out-of-square corners.
- Also included are the Swanson® Blue Book of Rafter Length and Roof Construction, and Layout Bar™ and hardware.
- Matte finish to prevent glare
- 12" body to cover larger materials
- Packaged with the 60-page Swanson® Blue Book and Layout Bar™ with hardware
- Used for laying out steps