The Hultafors Rafter Square allows you to make fast and precise 45° and 90° markings. Solid aluminium body with CNC machined edges for greater accuracy and durability. It has scales for cutting hip, valley and jack rafters. The thick edge can be used as a saw guide - it can be used directly with the saw against the square for cross cuts or angled cuts. It has scribing notches and can also be used as a protractor, for easily finding and marking various common angles. A robust and versatile tool for all craftsmen. The Hultafors Mini Metric Rafter Square 11cm.