Tool’s Speed Squares are essential for involved projects like rafter layout and stair stringers, and they’re perfect something quick like 45° or 90° degree measurements. This value pack includes the 7 inch and 12 inch squares and our Blue Book. It doesn’t include the layout bar and hardware. Solid aluminum and die cast for accuracy, these squares feature black gradations for easy reads everywhere. The Blue Book provides examples, diagrams and tables – facilitating any building job.