Practical combination: the square carpenter tool are consisted of framing square, Tri square, mitre square, and protractor square, a helpful measuring tool for your woodworkingQuality material: the triangle ruler is made from sturdy aluminium alloy with a matt finish to avoid glare, not easy to break, durable enough for a lasting usePrecision design: the metal square layout tool is marked with clear and precise calibrations, convenient for you to read value and mark angles quickly and accuratelyWide applications: the speed square tool is designed for building and remodeling projects, also suitable for amateurs, carpenters, home builders, engineers, DIY lovers and handicraft artistsEasy to use: the aluminium triangle ruler is intended to decide and mark angles and make square cuts on boards, of which thick edge can be directly applied through the protractor scale with the saw against the square for cross cuts or angled cuts, and then and accurately mark you cut lines on your stringers