Swanson Tool Company Big 12 Speed Square W/Layout Bar, Blue Book

12-in version of the Speed® Square, made in the USA since 1925, is essential for every carpenter, construction professional, roofer, and DIYer

Multi-tool: try square, miter square, saw guide, line scriber, protractor, out-of-square corner angle finder, and stair layout square for what it does, the Speed® Square belongs on every tradesman's tool bench

Includes Swanson Blue Book a guide with our one-number method to help make correct angle cuts for any pitched roof and bonus content for basic stairway layout

Features: 1/4 in and 1/2 in spaced scribing notches and the Diamond® cutout for easy rafter seat cuts and scribing the most common and popular stud widths

Gradations included for marking common, hip, valley, and jack rafters Useful for determining and marking angles and making square cuts on boards

Heavy-gauge billet aluminum alloy construction is die-cast for increased accuracy over laser-etched and extruded stamped rafter squares

Includes patented layout bar™ for repeated cuts and determining out-of-square corners

High-visibility, black gradations with a non-glare, matte finish for easy reading in any lighting conditions

When used as a saw guide, the Speed® Square makes truing up a board easy