Features and Benefits:�Super heavy-duty 1/4 in. thick blade�Head adjusts to any angle. 30, 45, 60 and 75-degree angles marked�Anodized aluminum finish�The numbers are large and bold for ease in readingThe Empire 419-48 48 in. heavy-duty adjustable t-square features super heavy duty 1/4 in. thick construction for everyday jobsite use. The adjustable head quickly matches 30, 45, 60, and 75 degree angle. An anodized aluminum finish with easy to read numbers allows for quick reference of multiple measurements.