The PEC 4-Piece Engineers Square Set includes 2", 3", 4", and 6" squares, providing a versatile solution for precise squareness, layout, and inspection in engineering, machining, and workshop environments. Designed for accuracy and durability, this set allows tradespeople, engineers, and machinists to check 90° angles, mark components, and verify assemblies with confidence. Crafted from high-quality materials, the PEC Engineers Square Set delivers reliable, repeatable measurements, making it an essential toolkit for professional layout, fabrication, and quality control tasks.