PREMIUM QUALITY - Made of high quality alloy, corrosion resistant and durable to use. MULTI-PURPOSE - The thick edge can be used as a saw guide. The etched protractor can be used with the saw against the square for crosscuts or angled cuts...... ACCURACY & DURABILITY - Our square has a solid aluminum body with CNC machined edges for better accuracy and durability, no matter the job or site. ADDITIONAL FEATURES - Permanent graduations with easy-to-read numbers, continuous notches. Also useful for hobbyists, builders, makers, DIYers, and artists.