JOHNSON 175mm Structo-Cast Rafter Square

This 7 inch rafter square is a versatile tool for builders and contractors. Its thick edge is useful as a saw guide - it can be used directly with the saw against the square for cross cuts or angled cuts using the hed protractor scale. The rafter square also simplifies stair layout - its integrated distance and angle scales let you quickly and accurately mark your cut lines on your stringers.