Built for trade professionals, this 180mm Pro Series Rafter Square is the ultimate metric square for trades demanding high accuracy and heavy-duty durability. Constructed with extra-thick anodised extruded aluminium and easy-to-read laser-etched markings, this square offers unmatched job site precision and tough dependability. It is resistant against rust and hard knocks. Ideal for rapid precision marking at 45° and 90° angles, exacting technical angles like rafter layout, or scribing notches at 5mm increments. Featuring metric markings to the millimetre, conversion tables for rise and run application and an extra-wide base for stability and secure holds on timber and straight edges. The solid aluminium body is durable and weather-resistant, capable of handling any jobsite as it is rust-proof. Numerals are clearly visible white laser etched markings with conversion chart and multiple gradations. It is multi-functional, capable of being a saw guide, scribing lines, pitching a roof, protracting purposes etc.