The Multi-T Square supports precise pipe fitting, welding, and fabrication layouts, with capacity for flanges up to 8 inches and fittings up to 14 inches in diameter. Two smoothly gliding 45-degree blades provide quick 45- and 90-degree references, while imperial and metric markings support versatile measurement. Lightweight aluminum blades and a rugged plastic handle combine durability with convenient handling, and the 10-inch and 14-inch arms suit common fit-up applications.