Swanson Tool Co. has manufactured precision layout and measuring tools in the USA since 1925, and is the inventor of the Speed Square. The company produces a wide range of tools including squares, levels, tape measures, marking tools, and straight edges, all designed for trade professionals. Their products are stocked by major retailers including Home Depot, Lowe's, Walmart, and specialist hardware stores. Swanson Tool is ideal for referring construction, carpentry, and trades businesses that need reliable, American-made measuring and marking equipment.