WORKPRO Aluminum Alloy Carpenter Square and Zinc-Alloy Square R… FAST USA SHIP

Rafter Layout Tool and 12 in. Combination Square Combo. The combination ruler itself is die-cast from zinc alloy and carries a steel ruler made of stainless steel with a matte finish. User-Friendly – Lipped fence allows you to easily brace the rafter square flush with the wood, creating a straight or angled line that is proportionate to the wood’s edge.