Swanson® The Big 12® Speed® Square With Layout Bar Lid Latch Perfected balance and power-to-weight ratio

Perfected balance and power-to-weight ratio increases swing speed to multiply power

Gumming & Corrosion

Approved for behind-the-wall applications with no access panels

The spray contains an antiseptic and a sealant to kill and keep out infections and insects

Ideal for wires entering service meter box from a utility pole

Swanson® The Big 12® Speed® Square With Layout Bar Lid Latch Perfected balance and power-to-weight ratioThe 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. Its 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 for roof and stairway layout and Layout Bar with hardware. See how to LAY OUT STAIRS See how to fix OUT OF SQUARE CORNERS Features Heavy gauge