The TERRIFI 12-Inch Combination Square is a precision measuring and marking tool designed for accurate 45° and 90° angle measurements in woodworking, metalworking, and construction projects. Made from durable stainless steel, it features an adjustable square head and an integrated bubble level for improved accuracy. Ideal for carpenters, engineers, fabricators, and DIY enthusiasts, it is perfect for layout work, measuring, marking, and checking right angles.