With the Dewalt DWHT25228-0 30 cm rafter square, you can mark 90° and 45° angles quickly and accurately. Its thick extruded aluminium body with a black anodised finish resists jobsite wear and will not bend, providing a solid straight edge when used as a circular saw guide. The wide base edge sits securely on timber and sheet materials to prevent slipping. Featuring high-contrast stamped markings and built-in scribe notches, this rafter square helps you lay out roof pitches, rafters, and parallel rip cuts with ease and precision.