This unique tool is actually five tools in one: a tri-square, a miter square, a protractor, a line scriber, and a saw guide
1/4" spaced notches to facilitate scribing lines
Includes markings for Swanson's® One-Number Method of rafter layout, and is packaged with the Swanson® Blue Book of Rafter Length and Roof Construction
5 tools in one: try square, miter square, protractor, line scriber and saw guide
Includes the new Diamond feature that makes layout work and seat cuts on common rafters easy
1/4" spaced notches to facilitate scribing lines
Black filled markings and blue book