2 Pack 12" and 7" Speed Square with Blue Book SW1201K

INCLUDES TWO GREAT TOOLS: Two Die Cast, Solid Aluminum Speed? Squares (7 Inch and 12 Inch)
DURABLE MATERIAL: Solid heavy-gauge billet aluminum alloy construction
ACCURATE: Both Speed Squares are die-cast for increased, consistent accuracy versus all of the laser-etched and extruded stamped rafter squares.
BLUE BOOK: Swanson's Blue Book of rafter lengths & roof construction includes a full 90-degree scale, full lists of length of rafter per foot runs, examples, definitions, tables, and more